再请教一套费费题，58

58. Some people say that the scarcity of food is a function of the finite limits of the earth’s resources, coupled with a relentless rate of population growth. This analysis fails to recognize, however, that much of the world’s agricultural resources are used to feed livestock instead of people. In the United States, for example, almost one-half of the agricultural acreage is devoted to crops fed to livestock. A steer reduces twenty-one pounds of inexpensive grain to one pound of expensive meat. Thus, the scarcity of food is not merely a function of limited resources and population growth.

Which one of the following is an assumption that would allow the conclusion in the argument to be properly drawn?

(A) People prefer eating meat to eating grain.

(B) Meat is twenty-one times more expensive than grain.

(C) The limits of the earth’s agricultural resources are not finite.

(D) More than one-half of the agricultural acreage in the United States is devoted to drops fed to humans.

(E) Growing crops for human consumption on the acreage currently devoted to crops for livestock will yield more food for more people.

虽然用排除法勉强做出了答案，但不太理解E以及E为什么对，请大家指点

根据题设

(1)limits of the earth's resources(2) population growth  →scarity of food

后来说了一堆 目的就是想说除了这两个causes 还有livestock→scarity of food

明白了这个关系 对E 取非 livestock会产生更多的food

明显会是题设结论不成立 因而选E