A、Clothes. B、Books. C、Food. D、Computers. B由对话中提到的literature section，read a book in peace，love stories等词可推断出他们讨论的是书店。

M: If you’ll just have a seat, Ms. Thomas, I’ll look into your mouth. Open wide! Em, still a bit red and swollen. Have you been taking the tablets I prescribed and cut down on the cigarettes?
W: Yes, doctor. It’s actually not half as sore as it was.
M: Em, yes. Your voice sounds better as well. Just take the tablets for a few more days and we’ll have another look then.
Question：What is the patient suffering from?

W: Morning, Mr. Roberts, have you been to that new shop in the High Street.
M: Good morning, Mrs. White. Yes, I just thought I pop in and browse around, seeing if there is anything I like. I must say I’m very impressed. They have a very good literature section and there is a little cafe where you can go and read a book in peace.
W: Have they got any nice love stories? That’s what I really like, a bit of romance and excitement.
Question：What does the shop sell?