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: Hey, I just finished reading a great book. It's about Steve Jobs. ,F: Really? But there are so many books about him now. What makes the one you read so special? ,M: Well, the one I read is by Walter Isaacson. It's different from the others, because Steve Jobs himself asked Isaacson to write it. ,F: Uhm, were they friends or something? ,M: Well, they knew each other well because Isaacson used to work for Time magazine in the 1980s. And he wrote about Apple products. But it was mostly a business relationship I think.
(A) F: Why did he offer to write about Steve Jobs himself? (B) F: Oh, the writer was a close friend of Steve Jobs'. (C) F: I am afraid I did not quite catch what you were saying. Please repeat it. (D) F: Oh, the writer used to write about Apple products.

Output: D


Input: Consider Input: M: At first, I thought this shirt was yellow, but now it looks green to me. ,F: You were right the first time. It's the blue light in the store that makes everything look different.
(A) M: Right, I like the light blue color of this shirt. (B) M: I guess so. This should be a beautiful authentic yellow shirt. (C) M: I’m sorry, I don’t understand. Could you say it again? (D) M: I know it's because of the red lighting. It's doesn't look yellow at all now.

Output: B


Input: Consider Input: F: Hi, I have a reservation under the name Sally. ,M: Hi, Sally, a room for 12 people at 7:30 PM. Is that right? ,F: Yes, we've got two more people coming, though. Is that OK?
(A) M: OK. That's 12 people in total, that's fine. (B) M: Oh, you'll have 16 people having dinner together. The room will fit. (C) M: I didn’t hear you. Please could you tell me again? (D) M: So you're a group of 14 people. No problem. The room is big enough.


Output: D