Given the task definition and input, reply with output. 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.

F: Jack, our teacher let me ask you which circus tickets you've decided to buy. ,M: Well, there wasn't much choice of them. There weren't enough of the 12 pounds 50 seats for all of us, which is what I was planning to buy. And although there were lots of seats at 15 pounds 50, these were only on weekday afternoons, which I know wasn't suitable for us. So I'm afraid I've gone for the ones at 17 pounds 50. I know it's more than we wanted to pay. But at least we won't be right the back.
(A) F: OK, just buy the 17.50 pounds tickets, I think that's the best choice for all of us to go there at that time, right? (B) F: Alright, just buy the 15.50 ones, and you said that weekday afternoons, that's perfect time for us to go. (C) F: I am afraid I did not quite catch what you were saying. Please repeat it. (D) F: OK, buy the 17.50 pounds ones, not having enough seats is not a problem, I am not going because I have to finish my homework.
A