Detailed Instructions: 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.
Q: M: I'm now at the airport to meet Mr. Dale, who is arriving at 3:00 PM. There will be some calls for me while I'm away. So please take a message. ,F: Certainly. What time will you be back? ,M: Well, if the plane arrives on time, and then I'll be back around 5:30 PM. ,F: If there is some urgent business, how can I reach you? ,M: I'll call it again. Just to make sure. ,F: All right.
(A) M: Okay. If there is some urgent business, I'll not call it again because I'll be back at 3:00 PM. (B) M: OK. I'll be back at 4:30 pm. There will be some emails for me while I'm away. Don't forget to take a message. (C) M: Okay. I'll be back at 5:30 pm. (D) M: I’m sorry, I didn’t understand. Could you repeat a little louder, please?
A:

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
C