wojiaodubing

我选的是A，A的意思是有种害虫会使玉米产量减少，为了杀死害虫，所使用的杀虫剂和改良玉米作用就会相互抵消。
OG解释里面说，it does not matter to the argument whether there are pests against which pesticides and genetic resistance are equally ineffective, because that is compatible with there being pests against which they are not equally effective.
我还是不明为哈A是错的，OG解释的后半句because 。。。。看不太懂。请大家指教。谢谢。