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: It's too hot. I'm not sure I can walk anymore. ,F: Oh, come on, you're not so old. I want to go to Monkey Island. ,M: Great. Let's go. I love monkeys. That's why I started dating with you. ,F: You're very funny today. As for me, I've always loved elephants and bears. I like their smell. Maybe that's why I chose you. ,M: Hahaha, I wish we could get some iced coffee somewhere. ,F: Yes, then I could buy you a coffee. ,M: Thanks. Hey, look at that polar bear. ,F: Oh, terrible. I can't believe they have him out in the sun like this. Isn't it too hot?
(A) M: I am afraid I did not quite catch what you were saying. Please repeat it. (B) M: I agree with you. The polar bear is in a pool. (C) M: I agree with you. The polar bear should be out in the sun. (D) M: I agree with you. The polar bear should not be out in the sun.
Example Output: D

Example Input: F: What can I do for you? ,M: I want to check out these books. ,F: Your library card, please? Oh, you have late fees. It comes to $4. You have to pay it off before you can check out more books. ,M: OK, no problem.
(A) F: Sorry, our bookstore is closing now. (B) F: You can apply for a library card over there. (C) F: Just a minute! I do not quite follow what you are saying, would you mind repeating that? (D) F: Besides, may I see your ticket to the museum? I need to check it out.
Example Output: C

Example Input: F: Can I help you, sir? ,M: Yes, I'm here to see the cars. ,F: Thank you. We have many brands. Do you have any particular brand in mind? ,M: Yes, I want to have a Ford. I need it badly for my work. But I don't have a lot of money. It must be very expensive, isn't it? ,F: Yes. Look, this model is newly developed and began to appear in the market just several weeks ago in America. It cost $43,800. But considering the high quality, it's worth it. ,M: That's why I shall choose it. But I'm afraid that I can't afford to pay in cash now. Can I pay regularly for the car in a year? ,F: Oh, yes. You can pay each month or the first time $13,800. And you must pay the remaining part in 12 months.
(A) M: Since, the way of payment is ensured, then please fill these files first. (B) M: I'm sorry, I don't understand. Could you say it again? (C) M: You don't have to worry about the quality of the car, daddy! (D) M: The function of the car is pretty good, you can have a try my son.
Example Output:
A