F: How long will it take me to get there? ,M: I'm not sure, but I think an hour is more than enough.
(A) F: More than an hour? I guess it is really far from here. (B) F: It only takes less than an hour? That's not very far. (C) F: I need to take less than an hour to the subway station and I still need to walk after the subway, right? (D) F: Just a minute! I do not quite follow what you are saying, would you mind repeating that?
B