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: 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: M: Mary, I heard that Sam is forming his own band. What's the name of the band? ,F: Stay Away from the World. It will be a great success. Sam is very good at playing the guitar.
(A) M: Really? You mean Sam is not very good at playing the guitar and the name of Sam's band is Keep Away From The World. (B) M: You mean Sam is very good at playing the piano, and the name of Sam's band is Stay Away From The World? (C) M: Just a minute! I do not quite follow what you are saying, would you mind repeating that? (D) M: So, it will not be a great success and the name of Sam's band is Stay Away From The Words.
Example Output: C

Example Input: F: The food looks really delicious. ,M: Sure it is, the wedding ceremony is wonderful, too. ,F: The bride looks so happy today. Are you a friend of Catherine's? ,M: Yes, we were in the same class at college. How about you? ,F: I'm a close friend of David's. How handsome he is in wedding clothes today. Well, may I have your name please? ,M: Jackson. I'm working in Chengdu, but I worked in Wuhan a year ago, and you? ,F: My name is Janet. I'm living in Mianyang. Ah, life in Chengdu, is it exciting?
(A) M: I really enjoy the food of Jackson and Catherine's wedding ceremony. (B) M: Nice to meet you in David and Catherine's wedding ceremony. (C) M: David and Catherine's wedding ceremony is such a terrible celebration. (D) M: I didn't hear you. Please could you tell me again?
Example Output:
B