Read each sentence to find out whether there is any grammatical error in it. The error, if any will be in one part of the sentence. The letter of that part is the answer. If there is no error, the answer is 'E'. (Ignore the errors of punctuation, if any).

Even after requesting him, he did not tell us that how he solved the problem.

A.

Even after requesting

B.

him, he did not

C.

tell us that how

D.

he solved the problem.

E.

No error

Correct answer is C

tell us how