New genetic evidence—together with recent studies of elephants’ skeletons, tusks, and other anatomical features—provide compelling support for classifying Africa’s forest elephants and its savanna elephants as separate species.

1. provide compelling support for classifying
2. provide compelling support for the classification of
3. provides compelling support to the classification of
4. provides compelling support for classifying
5. provides compelling support to classify

答案D，我选C。查字典，是support to sth.望指教。多谢

D, E不可能对,因为无论是classifying 还是calssify都是动词的意义,

整个句子中根本就没有该动作的逻辑主语

所以只能用classsification这样一个名词性的意义来避免这种尴尬处境-

--我的理解

个人认为,动词是优于名词的,OG上基本上都是这样

其次,还觉得这里的结构应该是provide...for 跟support的搭配似乎没什么关系喃

这是一种习惯用法，我也不知道为什么是这样，但大家到google上输入provide support 会出现无数种provide support for doing 的用法