Which of the sentences below best expresses the essential information in the highlighted sentence in the passage? Incorrect choices change the meaning in important ways or leave out essential information. A. Chemical pesticides often eliminate species other than the intended target and thereby upset food webs, especially by suppressing native predator species. B. Native predator species are often eliminated by chemical pesticides that are intended to have consequences for other pests. C. Chemical pesticides upset existing food webs by eliminating native species and by increasing the number of nonnative predators. D. The effects of chemical pesticides on a wide array of food webs and native predators are often unintended.