Task: Dialogue Generation
Input (English): F: I'm going hiking tomorrow, would you like to join me? ,M: I would love to, but I just caught a cold, so I plan to rest at home tomorrow.
(A) F: Could I join you to go hiking tomorrow? (B) F: That's too bad. How did you get a headache? Anyway, you should stay at home and have a good rest. (C) F: I am really sorry, I did not catch that. Would you slow down, please? (D) F: You got a stomachache. Do you need me to send you to the hospital tomorrow?
Output (English): C