Faced with the prevalence of GM crops organic farmersA．have sought new certifications for
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Faced with the prevalence of GM crops, organic farmers
A．have sought new certifications for their GM-free products.
B．can do nothing to stop their crops from being polluted by GM factors.
C．can get huge profits by selling their GM-free goods.
D．have done a lot to safeguard their GM-free goods.
请帮忙给出正确答案和分析，谢谢！
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正确答案：B
事实细节题。题干中的关键信息prevalenceofGMcrops对应第二段第三句的GMcropsbecomemoreprevalent。根据该句话可知，随着转基因食品的日益流行，农民们对它给有机食品造成的“污染”却无能为力。选项[B]“不能阻止他们的庄稼受到转基因因紊的污染”，正好概括了第三句后半部分的内容，所以[B]是答案。[A]“已为他们的非转基因产品找到新的认证”与原文第三段第一句不符；[C]“通过出售其非转基因食品而获得巨额利润”在文中未提及；[D]“做了很多事情来保护他们的非转基因食品”，与原文的内容相反。