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: What a terrible house! ,M: I'm sick of it, too! ,F: The doorbell doesn't work, there's no hot water, and the building is so old that it seems to be falling apart.
(A) M: I am really sorry, I did not catch that. Would you slow down, please? (B) M: I caught a cold after taking a cold bath last night because there was no hot water. (C) M: There is no doorbell in this restaurant, you have to wait for the waiter to open the door for you. (D) M: There is no hot water in the kettle. You can get some from the kitchen.

Ex Output:
B

Ex Input:
M: Hi, there. I think I'm coming down with something. I need some medicine to get me through the next few days. ,F: Wow, you look terrible. What's going on? ,M: Well, my throat hurts. My nose has been running and I have a bad cough. It could just be cold, but I don't know for sure. ,F: You should take some cold medicine and get some rest. You don't look well. ,M: I have a very important job and I can't miss any work. So, give me something strong.
(A) F: I am afraid I did not quite catch what you were saying. Please repeat it. (B) F: Good to know that you'll take a sick leave as you look ill. (C) F: Are you sure you won't rest at home? You really look sick. (D) F: Your throat is perfectly fine? But you sounds unhealthy.

Ex Output:
C

Ex Input:
F: Excuse me, I'm doing research on bus service, but I get you to answer a few questions. It won't take long. ,M: OK. I'd like to help. ,F: Thanks. How often do you take a bus, every day, less than once a week or somewhere in between? ,M: I go to school by bus so it's usually twice daily, line 4.
(A) F: Really? You mean you travel by bus every other day, line 14? (B) F: Really? You go to company by bus and it's usually twice daily, line 4? (C) F: Okay, I see. You go to school by bus and it's usually twice a day, right? (D) F: I'm sorry, I don't understand. Could you say it again?

Ex Output:
C