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: I just love badminton. What's your favorite sport? ,F: Um...It's hard to say. I like baseball a lot, but I think I like volleyball best.
(A) M: Me, too! I'm crazy about baseball. (B) M: I'm so glad that your favorite sport is badminton. (C) M: I am really sorry, I did not catch that. Would you slow down, please? (D) M: You love baseball most, although you're interested in volleyball.

Ex Output:
C


Ex Input:
F: Excuse me, Mr. Smith. I was wondering if you could do something about my neighbor's dog. It's been barking and keeping me up all night. ,M: OK. I'll call your neighbor on the phone.
(A) F: I’m sorry, I didn’t understand. Could you repeat a little louder, please? (B) F: Thank you! I hope I can sleep well tonight. (C) F: Thank you! My dog didn't feel well and barked all night! (D) F: Thank you for calling him. I guess I should make a apologize to my neighbor.

Ex Output:
B


Ex Input:
M: Hey Penny. Have you had a good week? How did your exam go last Tuesday? ,F: Fine, thanks Richard. I did a lot of revision for it. Some of my friends complained the paper was difficult, but I thought it was fair.
(A) M: I’m sorry, I don’t understand. Could you say it again? (B) M: Did you complaint to your friends last Tuesday. You must think it was unfair. (C) M: You are great. Sounds like your exam worked well, because You didn't feel the exam was difficult. (D) M: You will get a good mark in the exam. Actually no one complained about the paper.

Ex Output:

C