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: F: What do you plan to do tomorrow? ,M: I have no plan. Maybe just stay at home and read a book. ,F: The weather report said it would be fine tomorrow. What about going on a picnic? ,M: Just you and me? ,F: No, I have invited my friend Sarah and her boyfriend. ,M: Why not? I love going on picnics. ,F: Great. What about picking you up at 10 o'clock tomorrow morning? ,M: OK.
(A) F: Since you'll take the bus, let's meet at the station. (B) F: So you and your girlfriend Sarah will walk there? Fine. (C) F: I will arrive to your home at 11:00 and drive you there. (D) F: I am afraid I did not quite catch what you were saying. Please repeat it.

Output: D


Input: Consider Input: M: Hello, Barbara. Welcome back. You look great. ,F: Rod, it's lovely to see you again. ,M: How was your trip? ,F: Fun, but tiring. Milan was interesting. It's bigger than I expected, noisier and dirtier too. ,M: And Florence? What did you think of Florence? ,F: Well, I didn't go there. Have you been there? ,M: No, I've never been to Italy. I'd really like to go to Rome. Well, the cars in the car park. Is this all your luggage? ,F: Yes, but the suitcase is very heavy. ,M: Barbara, what's in it? Books or stones? ,F: Just 20 pairs of shoes.
(A) M: So you are taking 20 shoes to Milan now? (B) M: Why do you take so many shoes? (C) M: Why do you take stones to travel? (D) M: I’m sorry, I don’t understand. Could you say it again?

Output: B


Input: Consider Input: F: Hello, Universal Export Shanghai. May I help you? ,M: Good morning. This is Ryan Jacob from New York office. May I speak to David Parker please? ,F: Certainly, Mr.Jacob. Can you please hold for a moment? ,M: Thank you. ,F: I am sorry to keep you waiting, Mr.Jacob. Mr.Parker apologizes for not being able to speak with you at this moment. He is on another line. When can he call you back?
(A) M: It's OK. I didn't know he's not in the office now. When will he be back? (B) M: It's OK. I didn't know he's having a meeting. Let me call back later. (C) M: I am afraid I did not quite catch what you were saying. Please repeat it. (D) M: It's OK. I didn't know he's making a call at the moment. Let me call back later.


Output: D