Change of Speech - Verbal and Reasoning

Q1:

She said to him, "Why don't you go today?"

A She asked him why he did not go that day.

B She said to him why he don't go that day.

C She asked him not to go that day.

D She asked him why he did not go today.

ANS:A - She asked him why he did not go that day.

No answer description is available.