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).

At the end of the year every student who had done adequate work was automatically promoted.

A.

At the end of the year

B.

every student who had done adequate work

C.

was automatically promoted.

D.

No error.

Correct answer is D

No explanation has been provided for this answer.