Correct Answer: Rahul asked his mother when she would come back.

Solution : The first option is the correct choice.

Narration Conversion:

• The verb said is changed to the reporting verb asked because it is an interrogative sentence.
• The first-person pronoun you is changed to the third-person pronoun she .
• The modal verb would is changed to will .
• The question word when is used to connect the main clause to the reported clause.

Therefore, the correct sentence is: Rahul asked his mother when she would come back.