Task: Dialogue Generation
Input (English): F: Do you go to work by bus or by bike? ,M: I like riding the bike in the summer, but it's too cold to ride in the winter, so I take the subway these days.
(A) F: It's not far, so I think there is no need to take a bus to work. (B) F: I am afraid I did not quite catch what you were saying. Please repeat it. (C) F: Subway is good. But if you know how to ride, riding would be more convenient. (D) F: Sure. It's convenient for you to go by subway.
Output (English): D