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: You're from Canada, right? ,F: No, I'm not from Canada. I'm from the USA. ,M: Oh, sorry. Are you studying Japanese here? ,F: Actually, I'm not. I'm a business student.
(A) M: I'm from America so I teach English here. (B) M: When did you come here from your home country of America? (C) M: Just a minute! I do not quite follow what you are saying, would you mind repeating that? (D) M: I grew up in Japan and studied Chinese there.

Ex Output:
B

Ex Input:
F: I don't agree with Mr. Johnson on his views about social welfare. He seems to suggest that the poor are robbing the rich. ,M: He could have used better words to express his idea, but I've found what he said makes a lot of sense.
(A) F: I'm glad you think the idea that Mr. Johnson likes that hat is ridiculous. (B) F: I didn't hear you. Please could you tell me again? (C) F: So you agree with the Mr. Johnson that this dish is delicious? (D) F: Johnson is very good at expressing his opinion about movies.

Ex Output:
B