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: Well, any luck? Did you see Buster anywhere? ,F: No, I couldn't find him either. I drove all around the neighborhood. I circled our block 3 times, hoping he'll show up. No such luck. I'm sorry, Ben. ,M: It's not your fault. I shouldn't have left the door open. I hope we'll find him. He is such a huge part of our family. He walks with Lily to school every morning. ,F: I'm sure we'll find him. Ben, I remember when I lost my dog, Spot. We looked for 10 hours and finally we just gave up. Not long after we got home, Spot showed up at our front door. They know how to get home, Ben. They always do. ,M: I hope you're right, Lucy. Maybe he'll show up before it gets dark. I just hope he's OK. ,F: He will be, Ben. He has always been loyal to you and your family. He's probably just off exploring.
(A) M: I really hope so. By the way, thank you for helping me looking around our neighborhood. (B) M: I'm just worried. As a neighbor, I know you never raised a dog, so you won't understand it. (C) M: Just a minute! I do not quite follow what you are saying, would you mind repeating that? (D) M: It's fine, Lily. You may leave the office now and pick up your son Buster from his school.
Example Output: A

Example Input: M: When will you be leaving for the West Coast? ,F: Sorry, I won't be able to go now, because I've just started a new job. I won't get a moment free until my training is over.
(A) M: I’m sorry, I didn’t catch that. Would you mind speaking more slowly? (B) M: Oh, you are on training now. So when will you be free? (C) M: You are busy working as a trainer. (D) M: You will go to West Coast to find a job now. Good luck to you!
Example Output: B

Example Input: M: Welcome to Shanghai. May I see your passport and papers, please? ,F: OK, here you are.
(A) M: I didn’t hear you. Please could you tell me again? (B) M: Ok, the check is successful. Please go to the security check area. (C) M: Ok, the check is successful. Welcome to Beijing airport next time. (D) M: Sorry, sir. Our supermarket in Beijing does not provide passport replacement service, please go to the relevant government department.
Example Output:
B

