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: Consider Input: F: I finished the report. May I leave the office early today? I have to pick up my parents at the airport. ,M: But you are supposed to meet Mr.Black at 4:00 o'clock, aren't you? Can't you ask somewhere else to go to the airport?
(A) F: But I have already finished writing the report. Why can I go pick up my parents at the train station? (B) F: Oh, I forgot about that. I will meet Mr. Black then. (C) F: Just a minute! I do not quite follow what you are saying, would you mind repeating that? (D) F: OK, I'll ask Mary to pick up my parents at the train station then.

Output: B


Input: Consider Input: F: Facebook just reported that everyone in the world is only separated by an average number of 3.5 people. ,M: Wow, that doesn't seem possible! I thought the number was supposed to be 6. ,F: That's what scientists originally thought. I think we're all connected even more than Facebook reported actually. The report only included connections between those with a Facebook account.
(A) M: Facebook just reported that everyone in the world is only separated by an average number of 7 people but they don't like to share their lives. (B) M: I’m sorry, I didn’t catch that. Would you mind speaking more slowly? (C) M: You think people in the world are closely connected. (D) M: Facebook just reported that everyone in the world is only separated by an average number of 7 people because scientists don't understand social connection.

Output: C


Input: Consider Input: F: Hi Mike, could you please tell me something about your study experiences? ,M: OK. I studied in Australia for 5 years, in America for a year and in Japan for more than 3 years.
(A) F: I’m sorry, I didn’t catch that. Would you mind speaking more slowly? (B) F: You studied in Japan for 5 years? That's a very long time. (C) F: You studied in Australia for 5 years? That's a very long time. (D) F: It is awesome to study in Australia for a year.


Output: C