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: We've just moved into a new house. ,F: Really? Congratulations. ,M: Thank you. I think we want to buy a new television set. ,F: What kind of television do you want to buy? ,M: A color TV set, of course. But I'm not sure about the size. Maybe we should buy a big one. If we buy a small one, we might have to exchange it in a few years for a bigger one. That would be a waste of money. What's your opinion? ,F: In my opinion, I don't think it's necessary to buy a very big one.
(A) M: Why do you think we should get a small TV set but now a big one? (B) M: Yeah. We should buy a small TV set and change it in the future. (C) M: I agree with you. We should buy a big TV set instead of a small one. (D) M: Excuse me, could you repeat the question?

Ex Output:
A


Ex Input:
M: Mom? ,F: What are you doing here down at the beach? I thought you said you were going to buy some things for school? ,M: Uh, I did buy some things. ,F: Well, what did you buy? What do you have in your backpack? ,M: Let's see, I have 3 notebooks, 5 pencils, 2 erasers and...
(A) F: Why did you buy 2 notebooks and 5 pencils? (B) F: Why did you buy 3 notebooks ? (C) F: Why did you buy 3 notebooks and 5 pencils? (D) F: I am really sorry, I did not catch that. Would you slow down, please?

Ex Output:
B


Ex Input:
M: Would you like to have some ice cream? I've got a variety of flavors for you to choose from. I've got strawberry, peach, chocolate, chocolate chip, coffee, rocky road and butter. ,F: Wow, what choices you have. I wish I could, but I just can't. I'm on a diet to lose weight. ,M: Come on, it's just a bite. It doesn't really hurt to have just a bite. ,F: I'd better not. Please don't tempt me. Please. ,M: God, you are really strong willed.
(A) F: You mean I am really strong willed? Well, actually I don't have any icecream because I am on diet to lose weight now. (B) F: Really? You mean I am not really strong willed? Well, I don't have any icecream because I have a toothache these days. (C) F: Oh, you have 6 icecream flours for me to choose from. But I can't have any icecream as I am on diet to lose weight now. (D) F: I didn’t hear you. Please could you tell me again?

Ex Output:

A