Read the sentence below to find out whether there is any grammatical error in it. The error, if any, will be in one part of the sentence. Choose the option with that part as your answer. If there is no error, choose 'D' as your answer. (Ignore the errors of punctuation, if any).

Not one of the hundreds of striking workers were allowed to go near the factory.

A.

Not one of the hundreds

B.

of striking workers

C.

were allowed to go near the factory.

D.

No error.

Correct answer is C

was allowed to go near the factory