hoose the sentence that best combines the following sentences.
We had an accident. We were going home.

A.Because we had an accident, we were on our way home.
B.While we were going home, we had an accident.
C.While we were going home, we were having an accident.
D.Even though we had an accident, we weren’t going home.

A= x+3/x-3.
Tìm x để A là số nguyên dương