Mark the letter A, B, C, or D on your answer sheet...

Câu hỏi: Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.
"I wonder if you could possibly open the door for me?"

A. If you could open the door for me, it's a wonder.

B. Is it possible for me to open the door for you?

C. Would you mind opening the door for me?

D. I ordered you to open the door.