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: Sarah, have you had a chance to buy that new novel you wanted? ,F: Actually, I've already got it. I visited at least 5 bookstores yesterday and finally found a copy in our school library. ,M: Lucky you, I've been looking forward to reading it. ,F: It's in my study. I'll go and get it if you'd like to borrow it.
(A) M: I didn’t hear you. Please could you tell me again? (B) M: Oh, thank you very much, I never thought you could get the copy from our school library. (C) M: No, thanks, I have another copy besides the one you took from my home. (D) M: No,thanks, it's not in your study. Since you can find this book from the library, I believe I can too.

Ex Output:
B


Ex Input:
M: Wow, this dance is surely cool. There are so many people here. Uh, what's your name? ,F: Susan, Susan Dawes. You really don't know who I am? You sit behind me in geography class. ,M: Oh yeah, you're right. I guess I'm just used to looking at the back of your head, not your face. ,F: Are you OK? You're so nervous. ,M: I'm sorry for my strange behavior. I don't know why I pretended I didn't know who you were. I just didn't know how to start the conversation.
(A) F: It's okay, you behaved cool just now. (B) F: So every time you don't know how to start a conversation, you behave awkward, right? (C) F: Never mind, you are polite. (D) F: I’m sorry, I didn’t catch that. Would you mind speaking more slowly?

Ex Output:
B


Ex Input:
F: Brian, have you heard that Mister Giddings will be awarded the prize for Best Car Design at the Hyatt Hotel next week? ,M: Yes, but I thought either Mister Zarba or Miss Miller would win. I feel they're more talented than Mister Giddings. ,F: They are excellent designers, too. The competition must have been fierce. Will the winner receive a lot of money? ,M: Maybe, I don't know. By the way, do you know where the Hyatt Hotel is? ,F: It's right across from the Belagio Department Store on Granville Avenue, on the left side of a bank. The hotel just opened a week ago. I've heard they provide excellent food and service. Are you going to attend the ceremony?
(A) M: The competition wasn't fierce at all for there were few competitors. (B) M: I’m sorry, I didn’t understand. Could you repeat a little louder, please? (C) M: The competition was very competitive that many outstanding designers took part in it. (D) M: But it's so pity that there will be no prize money.

Ex Output:

C