Where is the conversation most probably taking place? Which class are the man and the woman taking together?

W: Excuse me, are you going to buy that book?
M: Well, I need it for a class but it’s awfully expensive.
W: Oh, we must be in the same class. Introduction to British Literature?
M: Yes, that’s the one. Were you there yesterday for the first class?
W: I sure was. Professor Robert really seems to know his subject.
M: Yes, I took his Shakespeare course last semester and it was very good. He likes listening to his students.
W: That’s a relief. I’m a biology major and I was a little uncertain about taking an English course.
M: I’m an English major and this is a required course. But now I’m in trouble because I’m not sure I can afford this book.
W: Hey, I’ve got an idea. Why don’t we split the cost and share the book?
M: Sounds great. Do you live on campus?
W: Yeah, I live on the 10th floor of Butler Hall.
M: Perfect. I live on the 3rd floor of Butler. We should have no trouble sharing the book. I can bring it up to your room right after I wrap up the assignment.
W: It’s a deal.