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: I'd like 2 tickets for tonight's show, how much is a ticket? ,F: $8.50 and there is also a service charge of $1 per ticket.
(A) M: So I need to pay $19 in total. (B) M: I need to pay $19 for service charge. (C) M: I’m sorry, I didn’t understand. Could you repeat a little louder, please? (D) M: So I need to pay $17 for one ticket.
Example Output: A

Example Input: F: Hello Ralph, it's mom. ,M: Oh, morning, mom! ,F: Ah, it's 1:45. It's not the morning at all. What are you doing anyway? ,M: Well, I'm going to make breakfast and check my email to see if anyone has responded to my advertisement for a new roommate. ,F: Right? ,M: What do you mean by "right"? ,F: Listen, who's willing to live with you? You cannot even take care of yourself. ,M: What are you talking about? I get up early every morning at 6 o'clock AM? ,F: Add about 6 hours to that.
(A) M: I usually get up a early in the morning.Dad. (B) M: I usually get up late in the afternoon. Dad. (C) M: I get up around midday just like my new roomate. What's the problem? (D) M: I didn’t hear you. Please could you tell me again?
Example Output: D

Example Input: F: Frank, do you hear that strange noise? ,M: Yes, I noticed it a while ago. It seems to be coming from the engine. ,F: What should we do? ,M: I don't know. Perhaps we should slow down and stop at the next parking lot to see what the matter is. ,F: OK. Let's do that. ,M: Oh, it is red hot! We have run out of water. ,F: How is the engine itself? Is it OK? ,M: I think it's alright. Let's wait till it cools down a bit and then add some water.
(A) F: OK. We can wait and add some water. I hope it works. (B) F: Of course. Let us wait and add some water to the pot. (C) F: Sure. We will wait for a while and then add some oil to the pot. (D) F: Excuse me, could you repeat the question?
Example Output:
A