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.

Ex Input:
M: What's wrong with you, Lucy? ,F: Our dog Rusty is lost. Someone left the backyard gate open and he got out. My daughter is so upset right now. ,M: Have you called the local dog shelters? ,F: Well, they haven't seen him. They said they would call me if they find our dog, but I don't expect miracles. It's 2 days and... ,M: We can always look for miracles. Does he have any identification on him? ,F: He's wearing his sweater. He's brown with white spots and... Sorry, 'm not thinking straight. You know, he's a big part of our family. We got him when he was a little puppy. I'm just worried he was stolen or is injured somewhere. ,M: I understand. I used to pet dogs, too. Let's walk around the neighborhood. Hey, look! There he is. ,F: Rusty! Come here boy! Oh, Glenn, I can't thank you enough. I owe you a big favor.
(A) M: I didn’t hear you. Please could you tell me again? (B) M: You are welcome. I am so glad that we found Rusty. (C) M: Honey, don't be too worry, the local cat shelter called me ten minute ago. (D) M: Don't worry. One of our classmates runs a pet shop. You can go there and find a new cat if you want.

Ex Output:
B


Ex Input:
M: Welcome to the Hilton. ,F: I'd like to check in.
(A) M: No problem. Please show me your passport and flight ticket. Do remember not to bring anything which is forbidden by the customs. (B) M: No problem. There is your key to the hotel room. (C) M: No problem. I will book a table for you so that you can have your dinner at our restaurant. (D) M: I am sorry. You spoke so rapidly that I did not catch the meaning of what you said. Could you repeat that?

Ex Output:
B


Ex Input:
M: There are certainly plenty to choose from. ,F: I'm finding it hard to know where to start. Would you like to look at the answering machines? Let's start here. I like this one. ,M: We can afford to pay $129 for an answering machine. ,F: But it must be of high quality. ,M: There's this one for $89. Or the smaller one for $59. ,F: I like the square shape of the smaller one. It'll fit neatly on my desk. ,M: And it's the cheapest. We'll buy that one. ,F: OK. What's next? ,M: Let me look at the list. We have to choose a television. This one is 34 centimeters. ,F: I really think 34 centimeters is too small for our room. ,M: Then let's take one bigger than 34 centimeters. ,F: Alright. Anything else? ,M: No, let's go and have a cup of coffee.
(A) F: Excuse me, could you repeat the question? (B) F: But I am thinking of getting a beer instead of coffee. (C) F: Sure. I guess a drink will do us good. (D) F: No thanks. I need to go home and measure the size of a room to decide which answering machine I should get.

Ex Output:

C