A、On animals. B、On human volunteers. C、On both animals and human volunteers. D、On cattle only. A

M: What are you eating, Samantha? A piece of steak? I thought you were vegetarian!
W: It is steak, but it’s organic. [1] I was never vegetarian. I just like eating natural food.
M: How can meat be organic?
W: [2] It means the animals don’t eat things that have been genetically modified or sprayed with pesticides.
M: And I suppose it has had a good time walking around the fields, without being shut inside all its life.
W: That’s right.
M: But can you taste the difference?
W: I think so. Anyway, I’m not filling myself with all sorts of chemicals that might give me cancer.
M: Yes, but there’s no proof that pesticides give you cancer.
W: So why do the scientists who monitor these things prefer to eat organic food too? [3] Pesticides are only tested on animals. Companies don’t have to spend millions on trials with human volunteers. Small quantities of chemicals do get into your food.
M: Some food? Look, if the newspapers found a company was deliberately selling an unsafe product, their share price would crash and they’d be out of business in no time.
W: They may go out of business soon if they don’t start selling organic food themselves. They say sales of organic food have risen by 25%.
M: [4] It’s still more expensive. You’ve got to compare the price, which is at least double, with the risk you’re running, which is absolutely minimal if you ask me.
W: Well, this is prime organic beef from the Scottish Highlands. So if you don’t mind, I’d like to finish my lunch!
Questions 1 to 4 are based on the conversation you have just heard.
1.What can we learn about the woman’s eating habit?
2.What is said about organic meat?
3.How do companies test pesticides?
4.What is the man’s opinion on organic food?