请教一条费费里的逻辑题Some people say that the scarcity of food 。。。。

. Somepeople say that the scarcity of food is a function of the finite limits of theearth’s resources, coupled with a relentless rate of population growth. Thisanalysis fails to recognize, however, that much of the world’s agriculturalresources are used to feed livestock instead of people. In the United States,for example, almost one-half of the agricultural acreage is devoted to cropsfed to livestock. A steer reduces twenty-one pounds of inexpensive grain to onepound of expensive meat. Thus, the scarcity of food is not merely a function oflimited resources and population growth.

Which one of the following is anassumption that would allow the conclusion in the argument to be properlydrawn?

A.      People prefer eating meat toeating grain.

B.       Meat is twenty-one times moreexpensive than grain.

C.       The limits of the earth’sagricultural resources are not finite.

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

E.       Growing crops for humanconsumption on the acreage currently devoted to crops for livestock will yieldmore food for more people.