A、Student and professor. B、Athlete and coach. C、Client and lawyer. D、Patient and doctor. B

M:  It’s always so hot and humid in here.
W: That’s because there are so many plants and windows.
Q: Where did this conversation most likely take place?

W: I had such a bad start in the last race; it was hard to catch up. All I could see was the backs of the others’ heads.
M: We’ll work on your start. The most important thing is concentration.
Q: What is the probable relationship between these two people?