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:
M: Nice to see you, Mary! Come in, please! ,F: Thank you Tom, but I am afraid not now. I've come only to return the book borrowed from you. ,M: Wonderful. I've been waiting for you a long time and longing to know what you think of it. ,F: It is very interesting and I've learned a lot from it. ,M: Well, so it is with me.
(A) F: I’m sorry, I didn’t catch that. Would you mind speaking more slowly? (B) F: It is very boring. (C) F: You are interesting. (D) F: It's just so-so.

Ex Output:
A


Ex Input:
F: Oh, Patrick. I can't get this phone to work. Can you help me? ,M: Are you trying to make a call? ,F: Yes, I just got it and I can't get the thing to work. ,M: Let me see. OK, you turn it on. ,F: I didn't turn it on. ,M: No, see you wait for the screen to light up. Then you enter the phone number and press the C button, right here. Got it? ,F: OK. I've got it. Ha! It's ringing. Hi, baby, it's me. Listen, I'm going to be a little late. I'm still at work in the office. OK? I'll be back by about 6:00.
(A) M: I am really sorry, I did not catch that. Would you slow down, please? (B) M: Let's go back to our project. We have to finish it before leaving the office. (C) M: Since you plan to go home at 7pm, we need to hurry to finish our works. (D) M: Let me pack this phone for you, ma'am. And what color do you prefer?

Ex Output:
B


Ex Input:
F: Hello Martin, long time no see. I heard you went to France to study, how was that? ,M: I was only there for a year, then I took a year off to travel around Europe. ,F: Where did you go? ,M: I went to Switzerland first and then Germany in Austria. I was planning to end my trip in Italy, but it didn't work out. ,F: Oh well, is it good to be back? ,M: Of course, but I'm returning to France to finish my degree. It's a four-year program.
(A) F: Really? You are returning to Italy to finish your degree and you need two years for your degree? (B) F: I am afraid I did not quite catch what you were saying. Please repeat it. (C) F: So, you mean it's a four-year program and now you need three years for this degree? (D) F: Really? You are not returning to France to finish you degree? Oh, you need four years for this degree!

Ex Output:

C