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: Researchers in America did some experiments to try to figure out why some people gain weight more than others do. ,F: Yeah, some people can eat whatever they want and they never seem to gain a pound. ,M: In this study, volunteers were given 1000 extra calories a day. About 2 pieces of cheese's worth of extra intake. ,F: This kind of study I'd like to be in.
(A) M: You prefer excise and you don't want to take 1200 extra calories so you don't like this experiment. (B) M: Just a minute! I do not quite follow what you are saying, would you mind repeating that? (C) M: Because you want to lose weight and you don't want the extra 1200 calories but you still want to join the experiment. (D) M: Because you enjoy the food.

Ex Output:
D


Ex Input:
M: Nice to see you, Mary! Come in, please! ,F: Thank you Tom, but I am afraid not now. I've come only to return the book borrowed from you. ,M: Wonderful. I've been waiting for you a long time and longing to know what you think of it. ,F: It is very interesting and I've learned a lot from it. ,M: Well, so it is with me.
(A) F: I'm here to ask you for help. (B) F: I am really sorry, I did not catch that. Would you slow down, please? (C) F: I'm here to invite you for dinner. (D) F: Now, here is the book to be returned.

Ex Output:
D


Ex Input:
M: Hello, Tom Wilson's. Can I help you? ,F: Hi. It's Emma Lloyd here. I'm calling about my motorbike. Is it ready to be collected yet? ,M: Can you remind me what's the brand of the bike? ,F: It's a City Zip. It's blue. ,M: Oh yes, we had to order in some parts. But they still haven't arrived yet I'm afraid.
(A) F: I hope you will repair it as soon as possible. And my name? I am Juliet. (B) F: I hope you will repair it as soon as possible. And the brand of my bike is BMW. (C) F: I hope you will repair it as soon as possible. And it's brand is City Zip. (D) F: I’m sorry, I didn’t catch that. Would you mind speaking more slowly?

Ex Output:

C