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.

M: Why hasn't the train left yet? We've been staying here for almost 1 hour. I have to attend an important meeting. ,F: I'm sorry, sir. But there seems to be something wrong with the railway ahead.
(A) M: Although I don't have anything to do after arrival, I am still worried that my train is going to be delayed. (B) M: I am afraid I did not quite catch what you were saying. Please repeat it. (C) M: I will be late for a meeting. (D) M: Why are you leaving so soon?
C