F: What made you so worried, the exam? ,M: No, I've prepared for the exam since a week ago. I'm worried about the paper. You know, there is a time limit for it, but I haven't collected enough information. If I can't finish it on time, my teacher will get disappointed.
(A) F: Don't worry too much about the paper. (B) F: Just a minute! I do not quite follow what you are saying, would you mind repeating that? (C) F: Don't worry too much about the paper. You've collected a lot of information. (D) F: Why are you worried about your teacher?
A