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: What a beautiful day! The birds are singing, and the sun is shining in the sky. ,F: Not so loud, I just woke up and I have a headache.
(A) M: I’m sorry, I don’t understand. Could you say it again? (B) M: Come on! It is a beautiful morning. (C) M: Oh, it's raining in the afternoon. You should take an umbrella with you if you go outside. (D) M:  It is not the bedtime, why are you still sleeping in the evening? The sun has gone down.

Ex Output:
B


Ex Input:
F: Why did you come to school by bike today? Is there anything wrong with your father's car? ,M: No, I just want to do what I can to protect the environment. ,F: That's a wonderful idea. I'll stop taking my father's car, too. ,M: That's great.
(A) F: Although your father's car broke down, we are students and this is what we should do. (B) F: As students, this is what we should do. (C) F: I am sorry. You spoke so rapidly that I did not catch the meaning of what you said. Could you repeat that? (D) F: Since our son's car broke down, we should fix it as parents.

Ex Output:
B


Ex Input:
M: Have you got the time? I forgot to bring my watch. It must be over 3 o'clock. ,F: Yes, actually it's 3:20. ,M: Oh, that means the meeting will begin in 20 minutes. ,F: Don't worry. I heard the meeting has been put off. We still have 40 minutes left.
(A) M: We should rush to the meeting room. It's 3:20, so the meeting has just begun. (B) M: Oh, so the meeting begins at 4 o'clock. (C) M: I’m sorry, I don’t understand. Could you say it again? (D) M: My watch shows it's 3:25 now. Maybe we only have 35 minuets left.

Ex Output:

B