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:
F: It was so terrible yesterday. ,M: What happened? ,F: Well, everything went wrong. In the morning, I went to the hotel to pick up an important customer, but was caught in a jam on the way. When I arrived at last, the customer had already left.
(A) M: I’m sorry, I didn’t catch that. Would you mind speaking more slowly? (B) M: That's terrible, I'm sorry to hear that you were not be able to pick the guest in the morning in time. (C) M: Well, at least you repaired the fax machine in that morning last week, that's more important. (D) M: I'm sorry that you had a terrible day last Sunday, at least you remembered to attend the parents' meeting in the morning.

Ex Output:
B


Ex Input:
M: Jane, would you mind turning down the music? ,F: Why? I thought you would like to listen to some music while working. ,M: Yeah, but you know, jazz and classical are not really my thing. I prefer folk.
(A) F: Really? But I remember you really like jazz. (B) F: I am afraid I did not quite catch what you were saying. Please repeat it. (C) F: But you always say that classical music is your favourate! (D) F: OK, I will change the folk music to jazz.

Ex Output:
B


Ex Input:
M: Hello, auntie. Is Andy in? I want to invite him over for the weekend. The great young singer Justin Bieber is giving a performance in the concert hall nearby. ,F: Oh, thank you, Dirk. But I don't think Andy will be able to make it. ,M: Why? Doesn't he like Justin Bieber? ,F: He does like him. But there's something wrong with his stomach. He went to the doctors with your uncle for an examination today. He hasn't come back yet. ,M: I'm sorry to hear that. I hope it is nothing serious. ,F: I hope so, too. But he was in great pain this morning. I was really scared. ,M: What do you think caused it? ,F: I don't know for sure. Perhaps it has something to do with what he ate last night. He went to Mary's birthday party and ice cream was served there.
(A) M: May be Bob got a cold when he played with uncle Andy last night. (B) M: I’m sorry, I didn’t understand. Could you repeat a little louder, please? (C) M: Yes! It must had something wrong with what he ate on the birthday party last night. (D) M: Bob went to a birthday party?! I think he must ate too much last night!

Ex Output:

C