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.

M: Mrs. Turner, I didn't do my homework because I didn't understand it. ,F: Sit down, Ken. And I'll explain it as soon as everyone is quiet.
(A) M: I’m sorry, I don’t understand. Could you say it again? (B) M: Thank you Mrs. Turner. (C) M: How was my homework, Mrs. Turner? (D) M: You are such a good classmate.

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
B