作者：英吉
Tropical bats play important roles in the rain forest ecosystem, aiding in the dispersal of cashew, date, and fig seeds; pollinating banana, breadfruit, and mango trees; and indirectly help produce tequila by pollinating agave plants.
(A) pollinating banana, breadfruit, and mango trees and indirectly help produce
(B) pollinating banana, breadfruit, and mango trees and indirectly helping to produce
(C) pollinating banana, breadfruit, and mango trees and they indirectly help to produce
(D) they pollinate banana, breadfruit, and mango trees; and indirectly help producing
(E) they pollinate banana, breadfruit, and mango trees; indirectly helping the producing of
题目分析：原文句子体现了一个并列，就是aiding一个东西，pollinate一个东西并且help一个东西，由于划线外用的是aiding，pollinate和help必须用ing的表达形式，符合这个提示的只有C。D和E那个they很多余，因为这三个动作的发起者都是bats，发起者没有变，没必要加they，就类似于英吉不仅杀人而且他放火，这个他就很多余，因为杀人，放火都是英吉干的，没必要加他，反过来想，什么时候要加他，就是放火不是英吉干的，发起者变了，这个时候代词的出现能够提示读者发起者变了。
