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: 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? ,M: Certainly. What about 2:00 o'clock in my office? ,F: That would be fine. See you then. ,M: See you.
(A) F: Excuse me, could you repeat the question? (B) F: OK. You should be at my friend's house at two in the afternoon. See you. (C) F: OK. I will be your office at 3:00 pm. See you. (D) F: OK. I will be your office on time. See you.

Output: D


Input: Consider Input: F: Mike, come here, please. ,M: I'm coming, mom. It looks like you're very busy. Is someone coming this afternoon? ,F: Yes, some of my friends are coming over this afternoon. There's still so much to get ready. ,M: Is there anything I can do to help you? ,F: Sure, I still need to get some drinks. I'd like to have coffee, water, fruit juice and some cola. ,M: I'll go and buy some fruit juice and cola and then I'll make some coffee. ,F: Do you know how to make coffee? ,M: Yes, aunt Joan taught Mary and me when we visited her last week. So I can make very nice coffee now. ,F: That's great, Mike. Don't forget to buy some sugar ,M: OK. By the way, when will your friends come? It's already 5:00 o'clock now. ,F: They'll arrive in an hour.
(A) M: Great, so they will arrive at 5:00 and we still have plenty of time to prepare. (B) M: I’m sorry, I didn’t catch that. Would you mind speaking more slowly? (C) M: I hope we can get everything ready at 6:00 to welcome your friends then. (D) M: Relax, we still have 2 more hours to prepare as your friends will come at 7:00.

Output: C


Input: Consider Input: M: Great job on your chemistry test, Anna. This is your second be in a row. ,F: B plus actually, so there is a small improvement that. ,M: So what have you been doing? You used to be a D student before?
(A) F: I find chemistry interesting. So, I got a B. (B) F: I find chemistry interesting. I worked hard and got B+. (C) F: I am afraid I did not quite catch what you were saying. Please repeat it. (D) F: I've joined a study group but I got a D.


Output: B