one of the boys left their jacket in the locker room. Identify the type of error found in the sentence. A) spelling error B) possessive error C) subject-verb agreement error D) pronoun-antecedent agreement error The answer is D. I figured out on a test can someone explain.

The type of error is found in the sentence is                                      B)Possessive error  

Explanation:

The error made in the sentence"one of the boy left their jacket in the locked room"is a very common one.people tend to focus on the plural word"boys"in the case,and use the possessive according to it.But the fact is that we are not talking about the "boys"we are  talking about the boy,one of them.Therefore the possessive pronoun should not be a plural one,but a singular one.The proper sentence would be: One of the boy left his jacket in the locker room.

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