Which one is plural? ?

In the context of the question "Which one is plural?", we must first understand the definitions of the options provided.

1. Someone - This word is a singular indefinite pronoun used to refer to an unspecified person. It is not plural.

2. Each - This term is also singular and is used to refer to every one of two or more items considered individually. It does not indicate a plural quantity.

3. None of these - This option implies that none of the previous options are plural. Therefore, it serves as a counter to the rest.

4. Anyone - Like "someone," this word is a singular pronoun that refers to any person or one person at all. It is not plural either.

All the provided optionssomeone, each, and anyoneare singular pronouns, each denoting a single entity. Therefore, the correct choice is C) None of these, as none of the options represent a plural form. Understanding the distinction between singular and plural is crucial in this context, leading to the conclusion that all listed choices are singular, thus confirming C as the right answer.