狒狒逻辑63题，求解，谢谢！

鹤源

63. Some good cooks are gourmet cooks who pride themselves on always using extravagantly rich ingredients in elaborate recipes. Some good cooks can be characterized as fast-food cooks. They may use rich ingredients as long as the recipes are easy to follow and take little time. Other good cooks are health food enthusiasts, who are concerned primarily with the nutritional value of food. But even though not all good cooks are big eaters, they all enjoy preparing and serving food. If the information in the passage is true, which one of the following CANNOT be true? A.       Most good cooks do not use extravagantly rich ingredients. B.        Everyone who enjoys preparing and serving food is a good cook. C.        More good cooks who use extravagantly rich ingredients are big eaters than are good cooks who do not use such ingredients. D.       There are fewer good cooks who enjoy serving and preparing food than there are good cooks who are big eaters. E.        Gourmet cooks, fast-food cooks, and cooks who are health food enthusiasts are all big eaters. A.        原文的第一句，从原文推出。B.         从结论可以推出。C.         推不出这种比较，无关。D.        正确。结论：但是即使并非所有的好厨师是big eaters，他们却全都喜欢准备和供应食物。说明喜欢准备和供应食物的好厨师的人数更多，是big eaters的好厨师的人数相比较少。D选项与原文的结论相反。E.         从原文推出。答案是D，能从原文推出，无可非议；B、C、E如何排除的呢？B、E怎么从结论推出的呢？（结论是“虽然不是所有的好厨师都是big eater，但是他们都......”和B与E的表述都不是完全一致啊）C既然推不出来，Cannot be true难道不该选C吗？

鹤源

我知道自己纠结在哪了，cannot be true的意思理解错了~谢谢耐心解答~

cdwayne

some good cooks are gourmet cooks
some good cooks are fast-food cooks.
some good cooks are health food cooks.
some good cooks are not big eater;
all good cooks enjoy preparing and serving food.

(A) could be true
(B) could be true
(C) could be true
(D) ALL (enjoy preparing and serving) 大於 some (big eater)
(E) could be true