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: Was that the telephone ringing? ,F: I didn't hear anything. ,M: I thought I heard it ring 2 or 3 times. ,F: Sometimes when the windows are open, you can hear the neighbor's phone. ,M: Well, I'm expecting an important phone call and I don't want to miss it.
(A) F: Relax. You're so nervous. You already missed the important phone call. Maybe you should call them back. (B) F: I’m sorry, I didn’t understand. Could you repeat a little louder, please? (C) F: Relax. You're so calm. You should be nervous in case you miss the important phone call. (D) F: Relax. You're so nervous. You should be more calm to wait for the important phone call.
Example Output: D

Example Input: F: Hi, Charles. Did you see the football game on TV last night? ,M: Hi, Laura. I wanted to watch it, but I couldn't. ,F: Oh, that's a pity. It was really exciting. Why couldn't you watch it? ,M: Oh, my wife wanted to see a new play.
(A) F: Yeah, the book we read yesterday night was very interesting. (B) F: What's the fun of seeing a new play alone? You should have watched the sports game with me last night. (C) F: I am afraid I did not quite catch what you were saying. Please repeat it. (D) F: Oh, I understand. How's the social event you attended last night?
Example Output: C

Example Input: M: What do you want to do after graduation, Mary? ,F: I like to go into the management. I've applied for several jobs, and already got some offers. ,M: Good for you, Mary. You are always about the most hard-working student in our class and your efforts finally paid off. ,F: It's so nice of you to say so, Lucas. And how about you? ,M: I have to do some more studies to become a lawyer. ,F: Oh, being a lawyer is not easy nowadays. And you have to overcome a lot of difficulties to achieve your ambition.
(A) M: Yes. Although it's going to be difficult, I want to be a manager in the future. (B) M: Excuse me, could you repeat the question? (C) M: I agree with you. I also think that being a lawyer is easy to achieve. (D) M: Yes. Although it's going to be tough, I want to be a lawyer in the future.
Example Output:
D