The indefinite pronoun “either” is

A) plural
B) singular
C) singular or plural depending on the context

My answer is C

Right.

You are correct! The indefinite pronoun "either" can be singular or plural depending on the context.

To determine the correct answer, you need to consider the noun or pronoun that follows "either." If the noun or pronoun is singular, then "either" is also singular. If the noun or pronoun is plural, then "either" is also plural.

For example:
1) "Either option is acceptable." - In this sentence, the noun "option" following "either" is singular, so "either" is also singular.

2) "You can choose either of the two options." - Here, the noun "options" following "either" is plural, so "either" is also plural.

So, in summary, "either" is a flexible pronoun that can be singular or plural depending on the context.