‘Crowd’ is a collection of persons. Hence, it is a collective noun.

'Truth' cannot be touched, but can be felt. Hence, it is an abstract noun.

'Honesty' is intangible. Hence, it is an abstract noun.

'Class' has students, which are homogenous elements. Hence, it is a collective noun.

Its a plural form of a common noun. (i.e. pupil, an important part of the eye).

‘Elephant’ would cover all the types of elephants. Hence, it is a common noun.

‘Solomon’ is a masculine name and could be the name of any man and it is also the name for a group of islands. Hence, it is a proper noun.

‘Strength’ cannot be touched, but can be felt. Hence, it is an abstract noun.

'Cleanliness' cannot be touched, but can be felt. Hence, it is an abstract noun.

‘Ships’ would cover all the types of ships. Hence, it is a common noun and option (3) is correct.

'Harbor' would cover all the types of harbors. Hence, it is a common noun.

'Bank' is a common noun as all the banks come under the same class.

'Grammar' is an abstract noun as it is knowledge of language. Knowledge cannot be touched, but can only be felt. Hence, it is an abstract noun.

'Nile' is a river in Egypt. Hence, it is a proper noun.

'Year' is a common noun as all the years come under the same class.

'Nelson' is the name of a person. Hence, it is a proper noun.

'Committee' is a collection of persons selected. Hence, it is a collective noun.

'Soldier' is a common noun as all the soldiers come under the same class.

'Herd' is a group. Hence, it is a collective noun.

'Victory' cannot be touched, but can be felt. Hence, it is an abstract noun.

'Bravery' cannot be touched, but can be felt. Hence, it is an abstract noun.

'Crew' is a group of persons. Hence, it is a collective noun.

'Wisdom' cannot be touched, but can be felt. Hence, it is an abstract noun.

'Fleet' is a group of ships. Hence, it is a collective noun.

'Godliness' cannot be touched, but can be felt. Hence, it is an abstract noun.