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 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: Now, please tell me something about yourself. ,M: My name is Henry Smith. I left school for months ago. I got A's in nearly every subject. ,F: Then why didn't you go to college? ,M: I wanted to. But I couldn't afford the costs. My father lost his job half a year ago. My mother makes too little money. My younger brother and sister are still studying in high school. I must work to help support my family.
(A) F: I didn’t hear you. Please could you tell me again? (B) F: So there are 4 people in your family, right? (C) F: So there are 5 people in your family, and your brother and sister are still in middle school, right? (D) F: Wow, you have 6 people in your family.

Ex Output:
A


Ex Input:
M: I can't sleep, Lisa. I'm gonna call in sick tomorrow. ,F: You should go to see the doctor. This is the third time this week you've stayed up all night. Are you alright? ,M: I'm not sure anymore. I feel fine and I get tired when it gets late. But then I just stay awake.
(A) F: You must feel nervous since you are waiting for a call from your doctor. It is the first time you can't sleep. (B) F: OK. Since you needn't to get up early next morning, you can stay up. Enjoy your trip tomorrow. (C) F: I am sure that you have trouble falling asleep. This is the fifth time this week you've stay up all night. (D) F: I am really sorry, I did not catch that. Would you slow down, please?

Ex Output:

D