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.

The visitor said, "Is your mother at home?"

A

The visitor asked me is my mother at home.

B

The visitor asked to me whether my mother was at home.

C

The visitor asked to me is my mother at home.

D

The visitor asked me whether my mother was at home.