How do collective nouns differ from plural nouns?

A.
Only collective nouns are formed by adding -s or -es to their singular forms.

B.
Collective nouns name a group of people or things, and plural nouns name more than one person, place, or thing.

C.
Plural nouns are formed by adding -s to their singular forms, but collective nouns are formed by adding -es.

D.
Only collective nouns can be plural.

B.

Collective nouns name a group of people or things, and plural nouns name more than one person, place, or thing.