求助一道逻辑短篇题

melanietingtingUID：3565526

1.A new and more aggressive form of the fungus that caused the Irish potato famine of the nineteenthcentury has recently arisen. However, since this new form of the fungus can be killed by increased application of currently used fungicides, it is unlikely that the fungus will cause widespread food shortages in countries that currently rely on potatoes for sustenance.Which of the following, if true, most calls into question the conclusion in the argument above?

(A) Though potatoes are an important staple crop in many parts of the world, people in most countries rely primarily on wheat or rice for sustenance.

(B) Potato farmers in many countries to which the new form of the fungus has spread cannot afford to increase their spending on fungicides.

(C) The new form of the fungus first began to spread when contaminated potato seeds were inadvertently exported from a major potato-exporting country.

(D) Potato farmers in most countries use several insecticides on their crops in addition to fungicides of the sort that kill the new form of the fungus.

(E) Most governments have funds set aside that can be used to alleviate the effects of large-scale disasters such as severe food shortages and floods.

自己做的是B，答案给的是D，怎么也想不通，求助各位大侠

melanietingtingUID：3565526

自己顶一下～

无敌浩克OneUID：3605802

这是陈虎平10套上的吗？
如果是就不必太纠结，Robin曾经说过10套上面很多题答案都很牵强，这个可能就是其中一道
把D选项往回推：用了很多种农药，未提到说多用了fungicide，所以不能说fungi减少是因为农药，与原文fungicide减少Fungi矛盾（好牵强。。。）
我也选的B，只要弄懂原文的逻辑和攻击或加强它的方式就OK了

melanietingtingUID：3565526

无敌浩克One 发表于 2015-5-12 09:44
这是陈虎平10套上的吗？
如果是就不必太纠结，Robin曾经说过10套上面很多题答案都很牵强，这个可能就是其中 ...

谢谢你的解答。我是做的新东方的红皮书。
那我就不再纠结了

一起加油啊！