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 can't wait for my birthday party this Saturday evening. I hope it will be better this year. I'm hoping for something surprising and a lot of gifts. ,F: It will be. There will be a lot of people at your party. ,M: I know my friends are preparing to give me a big surprise these days. ,F: How do you know? ,M: I saw Tom wrapping a big box with Alice, Bob and Annie
(A) F: Oh, I am pretty surprised about that, they really did a lot things for Bob's birthday party this Saturday evening. (B) F: I am really sorry, I did not catch that. Would you slow down, please? (C) F: To tell the truth, I'm as excited as you are, I also want to know the result of the test we did yesterday. (D) F: You are so calm, don't you want to know what they have prepared for Alice's birthday party this Saturday evening?

Ex Output:
B


Ex Input:
M: Hello. This is the China Telephone Company. What can I do for you? ,F: Is this the Complaints Department? ,M: Yes, it is. ,F: I want to complain about the bill I received this month. I don't think I've made that many phone calls. Have their rates gone up? There must be a mistake in your billing.
(A) M: Why do you think the telephone bill was not accurate? How much is ti? (B) M: Yes, your telephone line was always busy. But you still got a low bill, that's strange. (C) M: Do you mean that the telephone call was not clear. As IT department, I'll help you to solve it. (D) M: I’m sorry, I didn’t understand. Could you repeat a little louder, please?

Ex Output:
A


Ex Input:
F: The performance will be on at 7:00 PM on week days, 8:00 PM on Saturdays. And there's also an afternoon show at 3:00 PM on Sundays. ,M: Great. Let's get the tickets for Saturday.
(A) F: So we will see the performance at 7:00 p.m on Saturday, although there is also an show at 7:00 PM on Sundays, right? (B) F: Why will we see the performance at 8:00 p.m on Saturday? There's also an afternoon show at 6:00 PM on Sundays. (C) F: That is, we will see the performance at 8:00 p.m on Saturday. (D) F: I’m sorry, I didn’t catch that. Would you mind speaking more slowly?

Ex Output:

C