单选题 Man: Would you like to have some icecream? I've got a variety of flavors.
Woman: I wish I could, but I just can't. I'm on a diet.
Question: What do we learn about the woman?

A、 She is difficult to please.
B、 She is particular about flavor.
C、 She is trying to lose weight.
D、 She is crazy about icecream.

【正确答案】 C

【答案解析】男士邀请女士品尝各种味道的冰激凌，女士婉言谢绝，因为她在节食(on a diet)。因此C选项(lose weight)是正确的解释。故选C。