Definition: 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.
Input: F: May I leave the office early today? I have to pick up my parents at the airport. ,M: But you're supposed to meet Mister Black at 4:00 o'clock, aren't you? Can't you ask someone else to go to the airport?
(A) F: I didn’t hear you. Please could you tell me again? (B) F: Why can't I leave early? I'm going to meet my parents at the railway station. (C) F: So you mean I can't leave early today, right? (D) F: You mean Mr. Black won't come at four o'clock? Then I can pick up my parents at the train station.

C