SHE HAD TURNED ALL THE LIGHTS OFF BEFORE GOING OUT OF THE ROOM.A....

42. She had turned all the lights off before going out of the room.

A. After she had turned all the lights off, she went out of the room.

B.She turned all the lights off when she was going out of the room .

C.Before she went out of the room, she had turned all the lights off.

D. A and C are correct .