听力原文：W: We are now approaching the famous Statue of Liberty, which has welcomed visitors to New York Harbor since 1886.
M: Wow! Look at it. Incredible, isn't it？
W: The statue was given to the United States by the people of France. It was designed by the French sculptor Barthold.
M: It's really huge. Do we get to go inside？
W: Of course. We can climb the stairs all the way up to the crown.
M: Stairs？ There's no elevator？
W: Not to the top. But it's just 142 steps!
What is the probable relationship between the speakers？

A. Secretary and manager.
B. Waitress and customer.
C. Guide and tourist.