Given the task definition and input, reply with output. 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.

F: We'd better be going now or we'll be late for the train. ,M: No rush. It's 8:30 now, we still have 2 hours.
(A) F: So the train will leave at 10:30. (B) F: So we need to go at 8:30 to catch the bus. (C) F: Excuse me, could you repeat the question? (D) F: So the bus will leave at 10:30.
A