OG13 SC 26题关于分号的用法

waytousff

OG13-026.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


我想请问分号是怎么使用?
因为manhattan上面说到semicolon的使用是connect two closely related statements.Both statements must be able to stand alone as independent sentences.

我想请问manhattan上说的independent sentences要怎么去理解。如果是这样这一题不应该是选D吗?

附：正确答案是B


求各位大牛解答！谢谢！！！！！！！