求助一道PREP的语法题！

苗苗心圃G

Q30.p2-sc

The ecosystems of barrier islands are extremely vulnerable--whether from natural processes like shoreline recession, rising sea levels, and destructive hurricanes, or the ever-increasing pressures of development.



(A) whether from natural processes like shoreline recession, rising sea levels, and destructive hurricanes, or

(B) whether from natural processes such as shoreline recession, rising sea levels, and destructive hurricanes, or also

(C) to processes that are natural like shoreline recession, rising sea levels, and destructive hurricanes, and also

(D) to processes that are natural ones like shoreline recession, rising sea levels, and destructive hurricanes, as well as to

(E) to natural processes such as shoreline recession, rising sea levels, and destructive hurricanes, as well as to

答案是E，求解释！万分感谢！

mslancaster

根据like/such区别迅速扔掉A,C,D
B和E的差别是whether from A, B, and C, or ALSO D
和to A, B, and C, as well as to D

注意，whether or是一对平行结构as well as和 A, B, and C是平行结构  而E里面很好的用了to xxx, as well as to xxx
而B whether or却破坏了平行

选E，意思连看都不用看....

苗苗心圃G

太感谢啦！