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.

Ex Input:
F: Hello, Mr.Smith. This is Janet Bush. ,M: Hello, Miss Bush. ,F: I'm afraid I'm going to be late for our appointment. My friend was supposed to pick me up from the airport, but she just called me and said she is stuck in traffic downtown so she won't be here right now. It's 11 now, so there is no way I'm going to the restaurant at 11:30 as we planned. I wonder if we could reschedule our appointment to sometime this afternoon
(A) M: Yes, we had planned to meet at 11:30 a.m. Since you can't make it, let's reschedule our appointment at 1:00 pm. (B) M: Have you forgot it? We had planned to meet at about 11 a.m. Since you can't make it, let's reschedule our appointment at 1:00 pm. (C) M: I am sorry. You spoke so rapidly that I did not catch the meaning of what you said. Could you repeat that? (D) M: OK, let's postpone our meeting for half an hour. Can we meet at 2 p.m?

Ex Output:
A

Ex Input:
F: Good morning Can I help you? ,M: Yes, I need some directions. ,F: Sure. What are you looking for? ,M: Well, first of all I'm looking for the Hard Rock Cafe. How far is it from here? Need I take a taxi? ,F: Oh, it's just about 5 minutes walk from here. Just walk out of the hotel and turn right. It's right across from the National Bank.
(A) M: I'm sorry, I don't understand. Could you say it again? (B) M: OK. Since the Starbucks Coffee is close to the bank, I will go there by bike. (C) M: Thanks. It seems that the cafe is far from the hotel, I will take a taxi to go there. (D) M: OK, I see. I will walk out the hotel and turn right to find the Hard Rock Cafe.

Ex Output:
D

Ex Input:
F: It's extremely important to wear your seatbelt when driving. ,M: Even when it's just through town? I hate the way it rubs against my neck! ,F: Yes. It could save your life one day, and wear your helmet while you're on your bicycle too!
(A) M: I'll buy a good bike as you suggest. (B) M: I agree. Safety is most important. That's why I kept wearing my seatbelt. (C) M: If you are so concerned, I can tell you where to learn driving. (D) M: I am really sorry, I did not catch that. Would you slow down, please?

Ex Output:
D