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: Can we go somewhere and talk about your experience abroad? It's noisy in the cafe. ,F: Shall we go to the tea house upstairs? ,M: But I need to get some fresh air. ,F: Well, there's a park nearby. It's usually not crowded at this time of day.
(A) M: I’m sorry, I don’t understand. Could you say it again? (B) M: Great, the air in the park is comfortable (C) M: Ok, then go to the tea house downstairs you have mentioned. (D) M: Ok, I'd like to share with you my experience abroad in the cafe.
Example Output: B

Example Input: M: Did your teacher give a task for Monday? ,F: There is nothing to read in the textbook, but we have to see a movie and write a short report about it.
(A) M: Let's continue talking about the task. (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: Now that your teacher didn't give you any task for Monday, why should we continue to talk about this task? (D) M: You need to write a long paper about the movie? That's terrible.
Example Output: A

Example Input: F: Oh, there is nothing better than an ice cold glass of ice water on a hot day. ,M: You know, cold water always gives me stomachaches. ,F: Really? I've never had that problem. I've been drinking ice water since I was little. ,M: When I was a small boy, my grandmother never let my mom give me anything other than warm water. ,F: Even in the summer? ,M: Yes, every once in a while my dad would take me to get some ice cream, but my grandmother was never happy about that. I think it was the sugar that she didn't like.
(A) F: Your grandmother tell you to drink only cold water on hot days? (B) F: I’m sorry, I didn’t catch that. Would you mind speaking more slowly? (C) F: Drinking warm water in summer sounds healthy, but I can't do it. (D) F: You only have something other than water in summer, like ice cream.
Example Output:
C