How lucky! You called me, because I tried to c...

Câu hỏi: How lucky! You called me, because I tried to call you a few minutes ago and got a busy signal.

A You luckily called me, so I didn’t have to call you for a few minutes because the signal was busy.

B I was not lucky enough to call you a few minutes ago because I was busy.

C Luckily, you called me in time, for I failed to call you a few minutes ago.

D The busy signal prevented me from calling you a few minutes ago, so please call me back.