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: Do you think people's moods are affected by the climate they live in? ,F: Well, I think there's certainly something in it. Because when the weather is hot, I easily lose my temper, but when it's cooler I feel much calmer. And if it's raining, I always feel sad.
(A) M: Why do you feel angry when it's hot? (B) M: Excuse me, could you repeat the question? (C) M: Why do you feel sad when it's hot? (D) M: Why don't you feel angry but sad when it's hot?

Ex Output:
A


Ex Input:
M: What kind of music do you like? ,F: I like classical music, do you? ,M: Not very much. Classical music sends me to sleep.
(A) F: I am sorry. You spoke so rapidly that I did not catch the meaning of what you said. Could you repeat that? (B) F: Although Jazz music sends you to sleep, I like it very much. (C) F: I didn't expect that you like Classical music like me. (D) F: But I really like Classical music.

Ex Output:
D


Ex Input:
F: John was using his mobile phone in class, it was really impolite. ,M: No wonder the teacher was so angry. I thought someone had forgotten his homework again.
(A) F: I’m sorry, I didn’t understand. Could you repeat a little louder, please? (B) F: John was playing with his cell phone in class. But it's nothing. What made the teacher angry was that he didn't do his homework. (C) F: John didn't do his homework, which made the teacher angry. (D) F: John was sleeping in class, which made the teacher angry.

Ex Output:

A