Parenthesis is a punctuation mark that is used to provide additional information, like while using an abbreviation or acronym, providing its full form in a parenthesis so that the reader knows what is spoken about. In the given sentence, the full form of the acronym GES is provided in parentheses ( ), hence option A is correct. The punctuation mark ',' is a comma which is used to indicate a pause in a sentence. The punctuation mark '.' is a full stop, used at the end of a sentence, or for abbreviations like 'Mr., eg.'. The mark '!' is an exclamation, used to express surprise or shock in a sentence, hence these punctuation marks are not parentheses and options B, C and D are incorrect.

The punctuation mark, parentheses ( ), is used to enclose additional or extra information in a sentence, without influencing that sentence grammatically (the single bracket is called parenthesis whereas in a pair, ( ) is called parentheses). If the words enclosed in the parentheses are omitted, then the sentence won't be affected grammatically. If you look at options C and D, you'll see that the information in the parentheses "IST" and "or rather, lack of it" is additional. IST is a time zone and time zones are usually enclosed in parentheses, and "or rather, lack of it" is an extra, when omitted the sentence is not affected and is still complete. Hence these sentences use parentheses correctly, and options C and D are correct. In option A, when the phrase "and I" is removed from the sentence, the resulting sentence sounds incomplete, as "both" can't refer to the sister alone. The same goes for option B, April is one person and "are" is used for plural nouns. Hence in these sentences the parentheses haven't been used correctly and options A and B are wrong.

Double dash is used to separate a group of words from a sentence. Comma is used in case of option D. En dash (-) is used for option C. Thus option A is correct. 

Parenthesis is used to include additional information in a sentence. It's also used in numbered or lettered lists, the parenthesis encloses the numbers or letters. Like in the given sentence, it encloses the numbers this way (1), (2), (3), (4). Hence option A is correct. The punctuation mark ':' is a colon mark that precedes a list, to indicate that a list will follow. ',' is a comma that indicates a pause in a sentence or to separate parts of a sentence, like in the given sentence it separates the parts "mark sheet", "leaving certificate", "birth certificate" and "reference letter". '.' is a full stop which is used at the end of a sentence, the sentence ends at "letter", so the full stop follows it. Since none of these punctuation marks are parentheses, options A, C and D are incorrect.

The double dash -- contains two em dashes, which are longer in length than the hyphen. Depending on the context, they can replace the parentheses, comma and colon. It's more informal, compared to the parentheses. It adds emphasis to a group of words that it encloses, hence separating it from the sentence. When the double dash is used to enclose additional information, the surrounding punctuation shall be omitted, hence the comma, which previously followed the parentheses shall be omitted. Since the comma has not been omitted, it is the error here and we have to choose option C. Exclamation marks '!' indicate surprise or a command that requires immediate action, here the phrase requires quick action, hence it's not an error and we do not choose option A. The double dash -- has replaced parenthesis, it encloses additional information, at the same time, brings emphasis to it. hence it's not an error and we don't have to choose option B. Full stops '.' are used at the end of a sentence like in the given one, hence it's not an error and we don't have to choose option D.

The punctuation mark, parentheses ( ), is used to enclose additional or extra information in a sentence, without influencing that sentence grammatically (the single bracket is called parenthesis whereas in a pair, ( ) is called parentheses). If the words enclosed in the parentheses are omitted, then the sentence won't be affected grammatically. From the given options, if you look at B and D you'll see that the information in parentheses is additional, "and phone" is an extra information without which the sentence is still complete. Parentheses are used to enclose an amount of money, like Rs. 2000 to provide the extra information. Hence, these sentences have used parentheses correctly, options B and D are right. In A, when the word "boots" is omitted, the sentence sounds incomplete, because the question arises 'red what?'. In C, the full stop is included inside the parenthesis, but the closing punctuation mark (full stop) should be placed outside the closing parenthesis. (When a parenthetical sentence is complete on its own, then the full stop is included before the closing parenthesis as well as after the original sentence.) Hence options A and C are incorrect.

The double dash contains two em dashes, which are longer in length than the hyphen. Depending on the context, they can replace parentheses, comma and colon. It's more informal, compared to the parentheses. It adds emphasis to the group of words that it encloses, hence separating it from the sentence. From the options, the double dash - - is seen in option B, hence it's correct. Option A contains two commas, ",  ," it does not contain a double dash, hence option A is incorrect. Option C contains parentheses ( ), not the double dash. Option D contains a single dash and a comma, which is grammatically incorrect because there should either be a double dash or two commas enclosing the phrase, hence options C and D are incorrect.

Parenthesis is used to enclose information that clarifies or is used as an aside. Its use indicates that writer considered the information less important. 'The vice president of the company' can be kept aside in the given sentence. Thus. option B is correct. 

Parenthesis is used to enclose information that clarifies or is used as an aside. Its use indicates that writer considered the information less important. In the given sentence, commas can be replaced with parenthesis. Thus. option C is correct. 

Parenthesis is used to enclose information that clarifies or is used as an aside. Its use indicates that writer considered the information less important. In the given sentence, commas can be replaced with parenthesis. Thus. option C is correct. 

Parenthesis is used to enclose information that clarifies or is used as an aside. Its use indicates that writer considered the information less important. In the given sentence, commas can be used in place of parenthesis. But, there is no option available with commas. Parenthesis is correctly used in sentence. Thus. option A is correct. 

The punctuation mark, parentheses ( ), is used to enclose additional or extra information in a sentence, without influencing that sentence grammatically (the single bracket is called parenthesis whereas in a pair, ( ) is called parentheses). The functions of parenthesis include providing additional information, for example, 'The teacher (and his students) thoroughly enjoyed the museum tour'. It is used to enclose numbers while drawing a list, for example, 'Carry these items with you for the field trip: (1) an extra change of clothes, (2) a water bottle and (3) lunch'. Parentheses are used to provide the full form of an abbreviation, example, 'The INU (Indian National Union) addressed the current concerns during the press conference'. These three are the functions of the parentheses, but we have to choose the option that is not a function, hence options A, B and C are incorrect. The colon ':' usually introduces a list of items, like in the second example. Hence it's not a function of parentheses and we choose option D.

The double dash -- contains two em dashes, which are longer in length than the hyphen. Depending on the context, they can replace the parentheses, comma, and colon. It's more informal, compared to the parentheses. It adds emphasis to a group of words that it encloses, hence separating it from the sentence. When the double dash is used to enclose additional information, the surrounding punctuation shall be omitted, since options A and B are true, we can't choose these options. Double dashes add emphasis to the word or phrase they enclose, and when it's used at the end of a sentence, a single dash is used; for example, 'I cannot tolerate her mannerisms--or, rather, lack of mannerisms. Since the statements C and D both aren't true, we have to choose these options.

Parenthesis are marked by these brackets ( ) which contain a word or phrase, sometimes even a sentence that provides additional information. Without these words, the sentence surrounding it is grammatically correct. For example, 'The reporter Mr. Shekhar (along with his intern) came to the press conference.' Here the information in the brackets merely provides extra information and the sentence is complete if these words 'along with his intern' are omitted. Hence the correct option is A. Braces { } (or curly brackets) are used in certain mathematical expressions and in programming languages. Parenthesis is not used for this purpose, hence option B is incorrect. Option C is a characteristic of angle brackets < > which is used to enclose an email address, like <[email protected]> and isn't a function of parenthesis ( ), hence option C is incorrect. Square brackets [ ] are used to provide clarification, for example, 'She [Susan] came to meet me yesterday.' This isn't the function of parenthesis, hence option D is incorrect.

Double dash (--) is used to separate a group of words from a sentence. It puts the focus on the information. 'Men, women, children' are separated with double dash to put emphasis on them. Thus, option B is correct.