单项选择题
W: Hello.
M: Hello. What can I do for you
W: Mm... Do you have any tickets available for tonight’s performance
M: Yes, we have a drama play and a traditional opera, 50 pounds each.
W: Well, I’d like two tickets for the drama play.
M: Two tickets...
W: Excuse me. I would like front seats.
M: Okay, no problem.
W: Fine, thank you.
M: Two 50 pound tickets... that’s a hundred pounds.
W: Here you are.
M: Thank you. Please remember it starts at 6:15 this evening.
W: Okay. Thank you very much. Goodbye.
M: Goodbye.
A. A post officer.
B. A bus conductor.
C. A policeman.
D. A ticket clerk.