'Why didn't you join your friends on the trip?' sh...

Câu hỏi: 'Why didn't you join your friends on the trip?' she asked. 

A. She wanted to know why I hadn't joined my friends on the trip.

B. She asked me why I didn't join her friends on the trip.

C. She suggested that I join my friends on the trip.

D. She asked me why didn't I join my friends on the trip.