In the following question, a sentence has been given in Direct/Indirect speech. Out of the four alternatives suggested, select the one which best expresses the same sentence in Indirect/Direct speech.

Neha said, "Need I write a letter?"

A

Neha asked if she have to write a letter.

B

Neha asked if she had been writing a letter.

C

Neha asked of writing a letter.

D

Neha asked if she had to write a letter.