Question

Choose the sentence that contains a relative pronoun.

A. Please, put your book bag in your locker.
B. Mr. Moon, whom you have met, is my assistant.
C. Someone is coming down the hill.
D. Those are not my shoes.

Answer 1

B. Mr. Moon, whom you have met, is my assistant.

The relative clause in this sentence is "whom you have met". The relative pronoun used here is the whom.
Relative pronouns are type of pronouns that make use of possessive pronouns, or acts as an object or subject in the sentence.