Task: Dialogue Generation
Input (English): F: I heard you took part in a marathon last weekend. ,M: Yes, I really wore myself out. So I stopped halfway.
(A) F: I’m sorry, I don’t understand. Could you say it again? (B) F: Didn't you like the hiking trip? (C) F: I was really exhausted to continue swimming. (D) F: You must be too exhausted to continue at that moment.
Output (English): D