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: Is that you, Tom? Long time no see. What have you been doing all these years? ,M: Hi Lucy. I haven't seen you in a million years. I actually worked abroad for a few months and I've just returned from Canada. How are things with you? ,F: Everything is fine except that we have been missing you. ,M: We really need to get together sometime.
(A) F: How many years have you worked abroad? (B) F: Definitely! Let's make an appointment. (C) F: I’m sorry, I don’t understand. Could you say it again? (D) F: Definitely! Let's make an appointment after I return from Canada.

Ex Output:
B


Ex Input:
M: Shirly, I'm working on our class diary for next week. Would you please give me the information? ,F: Sure. First is the deadline for after class activity application. The deadline is next Monday, June fourteenth.
(A) M: OK. The deadline of personal data is on June 14th, right? (B) M: I am really sorry, I did not catch that. Would you slow down, please? (C) M: I see. The deadline of photos for the club is on June 14th. (D) M: I see. The after-class activity application is due next Friday.

Ex Output:
B


Ex Input:
M: Hi, Julie. I haven't seen you in class for a week. Where have you been? ,F: Hi, Mr.Jones. I've been ill since last Sunday. In fact, I'm still not feeling well. ,M: Yes, I can see that. What was the problem? ,F: The doctor thinks it was food poisoning. I went to a nice restaurant for lunch with a few of my classmates last Sunday. It was a great meal. So many dishes, barbecued beef, roast mutton and lots of vegetables. ,M: Sounds delicious.
(A) F: Yes. My classmates and I went to a nice restaurant last Friday. (B) F: Yes. My classmates and I went to the restaurant last Saturday. (C) F: I am sorry. You spoke so rapidly that I did not catch the meaning of what you said. Could you repeat that? (D) F: Yes. My classmates and I went to the restaurant for dinner last Sunday.

Ex Output:

C