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).

The President had hardly spoken a few words when the microphone stopped functioning.

A.

The President had hardly spoken

B.

a few words

C.

when the microphone stopped functioning.

D.

No error.

Correct answer is D

No explanation has been provided for this answer.