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.

Ex Input:
F: Nice to see you again, Mike. How was your trip to China? ,M: It was great. I flew to Beijing with my wife last month and I stayed there for 3 days. There were so many things to see and so many places of interest to visit in Beijing that we really couldn't decide whether to leave or stay. ,F: Have you visited other places in China? ,M: Yes, then we visited Shanghai and Nanjing, each city for 2 days. Finally we paid a visit to Guilin, where we spent 3 days. They were so beautiful that we were deeply impressed by these cities.
(A) F: Two days in Shanghai and Nanjing respectively didn't sound enough for me. (B) F: I'm sorry, I didn't understand. Could you repeat a little louder, please? (C) F: Three days in each city, including Nanjing and Shanghai? Sounds so great. (D) F: What did you do during the four days in Nanjing? I skipped the city last time.

Ex Output:
A

Ex Input:
M: Welcome to the Hilton. ,F: I'd like to check in.
(A) M: No problem. Please show me your passport and flight ticket. Do remember not to bring anything which is forbidden by the customs. (B) M: No problem. There is your key to the hotel room. (C) M: No problem. I will book a table for you so that you can have your dinner at our restaurant. (D) M: I am sorry. You spoke so rapidly that I did not catch the meaning of what you said. Could you repeat that?

Ex Output:
B

Ex Input:
M: I hope you had a wonderful time today. ,F: Yes, indeed. This temple is really impressive.
(A) M: I agree. The temple is really old and it has been worn down. (B) M: I'm sorry, I didn't catch that. Would you mind speaking more slowly? (C) M: Thank you, you look impressive too. (D) M: I'm glad that you enjoyed your trip today. The temple is very impressive indeed.

Ex Output:
D