Definition: In this task you are given a small conversation between two persons and 4 options on how the conversation should continue. Your job is to choose the most reasonable option. The conversation and the options are separated by a newline character. Each dialogue in the conversation are separated by a comma. F and M indicate female and male, respectively.
Input: F: Ted, it's really you? I just cannot believe it! You've really put on some weight. ,M: Yeah, that's true. Actually, I'm losing weight now. Now I go to the gym at least 3 times a week. So how have you been?
(A) F: Not bad. You've lost much weight. You are so slim now. (B) F: Not bad. You look younger and thinner now. (C) F: I am sorry. You spoke so rapidly that I did not catch the meaning of what you said. Could you repeat that? (D) F: Not bad. You used to be thinner. I can't believe it.

D