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.

Example Input: M: We'd like 2 rooms, a small room and a large room, both facing the garden. ,F: Very good sir, the small room is $20 a night, and the large room is $30 a night.
(A) M: So I have to pay $50 a night. (B) M: I’m sorry, I didn’t understand. Could you repeat a little louder, please? (C) M: I only need a large room, so I need to pay $20 a night, right? (D) M: I only need a small room, but I need to pay $50 a night, right?
Example Output: A

Example Input: F: How soon will Nancy come back?
(A) M: Well, I see Amy just once every two months. (B) M: Thanks for your concern. She will come back in a month. (C) M: I am afraid I did not quite catch what you were saying. Please repeat it. (D) M: You are right! Amy will go the university in a month.
Example Output: B

Example Input: M: Look at this armchair, what do you think? ,F: Oh, I'm not sure I like the design. It's too heavy looking. Is it comfortable? ,M: Try it. ,F: Uhm, It's really comfortable. And I'd like to have something this size. Our old armchair is way too small. This size is perfect.
(A) M: As I said, you really liked the design of the armchair. (B) M: I am sorry. You spoke so rapidly that I did not catch the meaning of what you said. Could you repeat that? (C) M: So you like the color of this armchair but you think it is too light? (D) M: Yes, as you like, the size of the armchair is perfect.
Example Output:
D