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.

Input: Consider Input: M: Would you consider buying a self-driving car? ,F: I don't know. I guess I'd have to research a bit more about them before making that decision. ,M: It will probably be a while before we are able to buy them anyway. We might be seeing self-driving trucks on the road pretty soon, though. Google wants to change the commercial trucking industry. Right now, there are over 3 million truck drivers in the US, so adding self-driving trucks would likely take away a lot of jobs. But many drivers might still be able to accompany their trucks and get a full night's sleep in the process. ,F: Truck drivers cause a lot of accidents on the freeway, so I think I'd like to see self-driving trucks. It would make me feel safer on the road. ,M: Really? I think it might make me feel less safe. A human driver is much more likely to react quickly to something unexpected.
(A) F: I am not agree with you, I don't think they are safer. (B) F: I am really sorry, I did not catch that. Would you slow down, please? (C) F: I am not excited by their speed because I think they are not safe at all. (D) F: Are you serious? I don't understand why you feel scared by them.

Output: D


Input: Consider Input: F: Hello, Mr.Smith. This is Janet Bush. ,M: Hello, Miss Bush. ,F: I'm afraid I'm going to be late for our appointment. My friend was supposed to pick me up from the airport, but she just called me and said she is stuck in traffic downtown so she won't be here right now. It's 11 now, so there is no way I'm going to the restaurant at 11:30 as we planned. I wonder if we could reschedule our appointment to sometime this afternoon? ,M: Certainly. What about 2:00 o'clock in my office? ,F: That would be fine. See you then. ,M: See you.
(A) F: Excuse me, could you repeat the question? (B) F: OK. You should be at my friend's house at two in the afternoon. See you. (C) F: OK. I will be your office at 3:00 pm. See you. (D) F: OK. I will be your office on time. See you.

Output: D


Input: Consider Input: M: I'm freezing, the forecast said it would be warm today. ,F: But you should always be prepared for all types of weather. ,M: How? You mean I should carry 4 sets of clothes with me everyday? ,F: I mean, you had better bring a coat if the mornings a little cold, and pack an umbrella in your briefcase if you get wet on the way to work in the morning. You will have a miserable day in the office. ,M: That's true. Well, if the weather clears up. I'm taking the afternoon off. I want to go down to the beach.
(A) F: So, you mean if the weather doesn't clear up, you expect to go to a clothes store this afternoon? (B) F: Really? You're taking the morning off and you expect to go to the seaside this afternoon? (C) F: I’m sorry, I didn’t understand. Could you repeat a little louder, please? (D) F: Really? You mean you're taking the afternoon off and you expect to go to the seaside this afternoon?


Output: D