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: F: May I speak to Mr Brown please? ,M: Oh, sorry. He isn't in at the moment. ,F: When will he be back then? ,M: Sorry, I don't know. Can I take a message? ,F: Certainly.
(A) M: I’m sorry, I didn’t understand. Could you repeat a little louder, please? (B) M: I'm so glad to talk to you through phone, Mr Brown. (C) M: All right. Please tell him that I called and I want to invite him for a party. (D) M: I'm so happy to meet you in the meeting room, Mr Brown.
Example Output: C

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: Did you have a good time yesterday? ,M: Yes, I went fishing with my friend by the Lake. But it rained at noon. So we stayed in a cafe before we went to the cinema at 7:00 PM. ,F: Wow! You had a wonderful day.
(A) M: Yes, fishing with my dad by the lake was so pleasant. (B) M: You tell me! We had a really nice chat in the cafe. (C) M: I’m sorry, I didn’t catch that. Would you mind speaking more slowly? (D) M: Sure, we went to the cinema in the afternoon.
Example Output:
B