M: I'm really surprised you got an A on the test. You didn't seem to have done much reading. ,F: Now you know why I never missed the lectures.
(A) M: I am sorry. You spoke so rapidly that I did not catch the meaning of what you said. Could you repeat that? (B) M: Wow! You have reviewed all the notes? No wonder why you got an A on the test. (C) M: So you mean that you have attended every lecture and it helped you get an A on the test? (D) M: So you mean that you have attended every lecture but it didn't help you to improve your grades?
C