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: F: How much is this piano, please? ,M: $1000. ,F: My god! That's a fortune! ,M: But you must realize that this is the most famous brand. ,F: But it's too dear for me. ,M: That's the best piano hit our store. ,F: I just want to get one for my daughter to learn how to play the piano.
(A) M: If you want to buy yourself a piano, this one is perfect. It is a niche brand and is the best piano in our store. (B) M: I'm sorry, I didn't understand. Could you repeat a little louder, please? (C) M: This is the best piano we have and it costs only $1500. It should be the best choice for your son. (D) M: This piano will suit your daughter very well since it is the most famous brand. She must like it.
Example Output: D

Example Input: F: Mr Parker. When did you arrive home yesterday evening? ,M: At about 8:00 o'clock? ,F: What did you do right after you entered your flat? ,M: Well, I washed my hands and then watched the Sports News. ,F: When did you have supper? ,M: At about 8:45 I guess. ,F: Did you stay at home all evening? ,M: Yes. ,F: But your friend said, that he phoned you several times between 8:00 and 9:00. But you didn't answer. ,M: Well, I think I was in the bath at that time. ,F: No, you weren't, you were not even at home last night, you robbed a bank in James Street.
(A) M: So, you mean I was not even at school last night and I had been to James Street the night before? (B) M: So, you mean I was not even at home last night and I had been to James Street the night before? (C) M: I am really sorry, I did not catch that. Would you slow down, please? (D) M: Really? You mean I robbed a bank in Smiths Street and I had been to my friend's home the night before?
Example Output: B

Example Input: M: Good evening. Do you have any rooms available at the moment? ,F: Yes, we do. How many nights do you want to stay? ,M: 4. If it's possible. ,F: OK, let me see. I'm sorry, sir. I'm afraid we can only give you a room for 2 nights. It's a very busy period right now. We're almost fully booked these days. ,M: Alright. I'll just stay for tonight then. It's too late to go to other hotels now. I'll search for another one tomorrow.
(A) F: Thanks for your understanding, I'll prepare a room for you to stay one night. (B) F: Sir, we don't have a room for 2 nights, you can only stay here for one night. (C) F: Are you sure you'll stay for only two nights? We still have many vacancies. (D) F: I'm sorry, I didn't catch that. Would you mind speaking more slowly?
Example Output:
A