Answer:
I am guessing e. idiom
Explanation:
Only because Idiom refers to multiple
An object pronoun takes the place of a (A) noun in the object part of a sentence.
it cant be A or B so I would say that it is C
A noun NAMES a thing: Alan, boy, Betsy, girl, Fido, dog, Democrats, men, Brownies, women, car, water, stick, computer, radio.
A pronoun stands for a noun, or points to a noun: you, me, he, him, she, her, they, them, it.