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.

Example Input: M: Have you ever taken History 231? ,F: Yeah, last term. ,M: Who was the professor? ,F: Professor Johnson. ,M: I have him this semester. What do you think of him? ,F: He's a terrible instructor and demands a lot, but fortunately we can get high scores easily in his class. ,M: What did you get? ,F: I got an A, but none of my test scores were that high. So I don't know how I got such a good score. ,M: Really? I was about to give it up, but after hearing your experience, I think I will continue to stay in the class. ,F: You will get a better grade than your test scores. ,M: Thanks for the information. I feel relieved now.
(A) F: You are welcome. Wish you well in the new class. (B) F: You are welcome. Just go and have a talk with Professor David. (C) F: No worries, stay and you will get a good score. (D) F: I'm sorry, I don't understand. Could you say it again?
Example Output: C

Example Input: M: Good morning, madam. What can I do for you? ,F: I bought this new radio here half a month ago, then I posted it to my daughter who is studying English in Shanghai Foreign Language University. But a week later she posted it back, saying that it doesn't work. I don't know why. Could you help me check out the radio? ,M: Let me see. Did you check it when you bought it?
(A) F: The radio stopped working one day when I was listening to music. It doesn't work anymore. (B) F: I didn't hear you. Please could you tell me again? (C) F: I really need to go back to the post office to take back my radio. (D) F: Maybe. Now the radio stops receiving any program.
Example Output: B

Example Input: M: We're going to have a party tonight. That's great. But what kind of drinks should we get? ,F: I know that beer is your favorite, but I don't think everyone likes it. How about some soft drinks? ,M: OK, but I don't think we need too many softdrinks. We've got one bottle of orange juice. So another 2 bottles of cola will be enough. Is there anything else we need to prepare? ,F: Well, let me see. Maybe we better get some wine. ,M: I agree, if you must. But you know, I don't have any interest in drinking wine.
(A) F: Well, nobody likes drinking wine, but that's all I got. (B) F: So you don't like wine and you only like juice, right? (C) F: I'm sorry, I didn't understand. Could you repeat a little louder, please? (D) F: Wine isn't fine for you? I thought you liked it.
Example Output:
D