Which sentence has an incorrect shift in pronoun-antecedent agreement?

Question

Responses

A No one in the crowd had noticed the pickpocket stealing their wallet.No one in the crowd had noticed the pickpocket stealing their wallet.

B All of the crows were cawing ferociously at the invader on their land.All of the crows were cawing ferociously at the invader on their land.

C When Keegan and Cole won the lottery, they immediately quit their jobs.When Keegan and Cole won the lottery, they immediately quit their jobs.

D Each of the string of lights has a different size fuse for its voltage

Answer 1

The sentence with an incorrect shift in pronoun-antecedent agreement is:

A. No one in the crowd had noticed the pickpocket stealing their wallet.

In this sentence, "No one" is a singular pronoun, so it should be followed by a singular pronoun (his or her) instead of the plural "their." The other sentences maintain correct pronoun-antecedent agreement.