请问PREP 103的答案为什么是这样？

Simply because they are genetically engineered does not make it any more likely for plants to become an invasive or persistent weed, according to a decade-long study published in the journal Nature.

(A) because they are genetically engineered does not make it any more likely for plants to

(B) because it is genetically engineered does not make a plant any more likely to

(C) being genetically engineered does not make it any more likely that plants will

(D) being genetically engineered does not make a plant any more likely to

(E) being genetically engineered does not make a plant any more likely that it will become

为什么答案选D呀？

because是连词，而AB都没有两个分句，当然错。

C中使用形式宾语it，句子结构太复杂了。E和D比D对但是更简洁。