Read the following conversation and answer the question.

W: Would you mind taking your feet off the desk, Bill?

M: Sorry, but I was very comfortable.

W: But do you put your feet on your own desk?

M: No, never. I don't want to mark my desk.

W: Well, would you please keep my desk clean?

M: Aren't you going to sell it?

W: Yes, but who wants a badly marked one?

Question: What might be the relationship between the two? 

- They are boss and employee.

- They are colleagues.

- They are brother and sister.


They are colleagues.