单项选择题

[听力原文]8-10
W: Mr. Johnson, I burned my hand when I was cooking. What would you recommend
M: Try this medicine and also take a Vitamin C tablet every day.
W: Vitamin C For a burn
M: Yes, a cut or a burn, or even a broken leg, will not heal properly without Vitamin C. And, anyway, Mrs. Grant, you are a heavy smoker.
W: Really Why do smokers need Vitamin C
M: Cigarette smoking, even tension, can cause levels of Vitamin C in your body to go down. And since the human body doesn’t produce Vitamin C, we have to get it from a Vitamin C supplement. Of course, there are plenty of reasons for you to stop smoking, but even nonsmokers need a proper amount of Vitamin C.

Where does this conversation most probably take place（）

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