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云的足迹

Which of the following most logically completes the argument below?

The expansion of large-scale farming in Africa and Asia has destroyed much of the natural vegetation on which elephants have historically depended, forcing them to turn to cultivated land to satisfy their enormous appetites. As a result, farmers have lost millions of dollars worth of crops annually. Yet even if elephant sanctuaries were created on a widespread basis to guarantee elephants sufficient natural vegetation, the raiding would likely persist, since            

1. when elephants forage for food, they typically travel in herds.

2. Foraging elephants have been known to cause substantial damage even to plants that they do not eat.

3. Some of the land where crops have suffered extensive damage from elephants has been allowed to return to its natural state.

4. Elephants tend to prefer cultivated crops to wild vegetation as a food source.

5. Elephant sanctuaries are usually created in areas that are rich in the natural vegetation on which elephants have historically depended.

答案是Ｄ，我先Ｃ了，

我选的时候是觉得被毁坏的地方如果重新回到原来那种自然的样子,而禁区没提到有什么好的有效改善的情况下，是不是就意味着大象的袭击会重蹈覆辙呢．所以读到Ｃ的时候很自然的就做做出了选择，看Ｄ的时候也能理解，似乎能读懂题的意思，但是我那样想Ｃ错在哪里呢？ＮＮ帮忙分析一下啊

amyydh

我认为C的意思是被大象破坏的一些地被还原了，不能解释文中耕地仍被破坏
我这题选了B，随后意识到文中的耕地并未提到大象不知上面的庄稼
D，更有说服力