Given the task definition and input, reply with output. In this task, you will be shown a conversation. You need to write a question with three choices for the conversation. Your question should be answerable based on the conversation and only have one correct answer. Note that you don't need to answer your question. "W" and "M" in the conversations stand for "woman" and "man".

W: Your boarding pass, please! M: Here it is. W: Thanks. M: Where is my seat? W: 15A. Just over there, sir. M: Thank you, Miss. By the way, where can I put my bag'? W: You can put your coat and small things on the shelf over your feet. M: I've got two bags. I'll afraid I can't put them down there. Can I put them on the shelf above? W: All right, sir. M: And where is the washroom? W: Behind the curtain. M: Thank you again. W: You're welcome.
What is the relationship between the two speakers? (A) Conductor and driver (B) Air hostess and passenger. (C) Waitress and customer.