You will be given a definition of a task first, then some input of the task.
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: Mike, I'm going to Washington tomorrow, do you have anything to be taken to professor Yang? ,M: Yes, Helen. I finished the article, if you will take it to him that will save me a trip. ,F: I'm glad to. ,M: Please ask him to read the article and point out any mistakes and I will try to correct them when I take it back. ,F: Have you printed it out? ,M: Not yet. Someone else is using the machine. ,F: Then can you print it before 4:50? ,M: Sure, I will take it to your office.
(A) F: I am sorry. You spoke so rapidly that I did not catch the meaning of what you said. Could you repeat that? (B) F: Great! We can go to New York to see professor together tomorrow. (C) F: No problem. I'll wait for you. And I'll take it to professor Huang today. (D) F: Sure, I'll wait you at my office. Make sure you arrive before 4:50.
Output:
D