To solve this question, the user needs to know what nested tables are.

A nested table is a table that is placed inside another table, and it can be a useful way to organize and display information.

Thus, the correct answer is:

The Answer is: A, True.

To answer this question, we need to understand the concept of HTML tags.

Option A) DT - This option is incorrect because the <dt> tag is used to define a term in a description list, but it is not a two-sided tag.

Option B) LI - This option is incorrect because the <li> tag is used to define a list item in an ordered or unordered list, but it is not a two-sided tag.

Option C) DD - This option is incorrect because the <dd> tag is used to define a description in a description list, but it is not a two-sided tag.

Option D) DL - This option is correct because the <dl> tag is used to define a description list in HTML. It is a two-sided tag because it has an opening <dl> tag and a closing </dl> tag.

Therefore, the correct answer is option D) DL. This option is correct because the <dl> tag is a two-sided tag.

To solve this question, the user needs to know the basic structure of HTML and how tags work. In HTML, the opening tag is used to define a specific feature or element, and the closing tag is used to indicate the end of that feature or element. This creates a nested structure in which the content within the opening and closing tags is affected by that feature or element.

Now, let's go through each option and explain why it is right or wrong:

A. Quit: This option is incorrect because there is no HTML tag named "Quit". Therefore, the browser would not apply the feature of a tag until it encounters a Quit tag because it does not exist.

B. Closing: This option is correct. The browser applies the feature of a tag until it encounters its closing tag. For example, if an

tag is used to define a heading, the browser would apply the formatting of the

tag to the text until it encounters the closing

C. Exit: This option is incorrect because there is no HTML tag named "Exit". Therefore, the browser would not apply the feature of a tag until it encounters an Exit tag because it does not exist.

D. Anti: This option is incorrect because there is no HTML tag named "Anti". Therefore, the browser would not apply the feature of a tag until it encounters an Anti tag because it does not exist.

E. Deactivate: This option is incorrect because there is no HTML tag named "Deactivate". Therefore, the browser would not apply the feature of a tag until it encounters a Deactivate tag because it does not exist.

The Answer is: B (Closing)