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: Hello, I want to ask you how to draw money. ,F: There is quite a long line in front of the bank windows. Please use this machine.
(A) M: I am sorry. You spoke so rapidly that I did not catch the meaning of what you said. Could you repeat that? (B) M: Since there are few people in the bank, I'll just wait in front of the windows. (C) M: I need to go to the bank after we have meals in this nice restaurant. (D) M: I need to go to the bank after we check out in the hotel.

Ex Output:
A


Ex Input:
M: I'd like a lot of different bands. I guess my favorite one is Green Day. Do you like them? ,F: No, I don't. I guess they have some good songs but they're very noisy.
(A) M: I’m sorry, I didn’t catch that. Would you mind speaking more slowly? (B) M: What's your hobby in your spare time? (C) M: Why do you like these songs? (D) M: Oh, you like Green Day band best. That's great. I like them, too.

Ex Output:
A


Ex Input:
F: Have you chosen the music for the party yet? ,M: I was going to just let people bring their own. ,F: Oh, I don't think you should do that. One person needs to be in charge. Otherwise, people will start disagreeing. Sony's really good at music. You could ask her. ,M: OK. Have you got her number? ,F: Yeah, it's on my mobile. I'll text it to you.
(A) M: You have helped me prepare for the party. The party is a great success. (B) M: Thank you for asking Sonia for the information of the party. (C) M: I know Sony's phone number, but thank you for offering to tell me. (D) M: I didn’t hear you. Please could you tell me again?

Ex Output:

D