听力原文：W: I enjoy going through secondhand bookstores, don't you？ It's interesting to se

e what people used to enjoy reading. Did you see this old book of children's stories？

M: Some of these books aren't so old, though. See？ This novel was published only six years ago. It cost seventy-five cents.

W: Hey! Look at this!

M: What？ Are you getting interested in nineteenth-century plays all of a sudden？

W: No. Look at the signature. Someone gave this book as a present, and wrote a note on the inside of the front cover. It's dated 1856. Maybe it's worth something.

M: Everything on that shelf is worth fifty cents.

W: But if this is the signature of someone who is well-known, it might bring a lot more. I hear William Shakespeare's signature is worth about a million dollars.

M: Oh？ I can hardly read what the one says. Who wrote it？

W: The name looks like "Harold Dickinson". Wasn't he a politician or something？ I'm going to buy this book and see if I can find a name like that in the library.

M: Good luck. Your book of plays may make you rich, but I'll bet my seventy-five cents novel is a better buy.

Where is this conversation taking place？

A．In a classroom.

B．In a library.

C．At a secondhand bookstore.

D．In a museum.