OG verbal *92

jwawa

92. According to a study, companies in the US are providing job training and general education for nearly eight million people, about (equivalent to the enrollment of ) the nations' four-year colleges and universities.
]
B. the equivalent of those enrolled in
C. equal to those who are enrolled in
D. as many as the enrollemnt of
E. as many as are enrolled in

我总觉得E的答案中缺一个代词之类的成分阿，或者把are一起省去似乎也要稍稍好一些。请NN帮我分析一下这种语法结构吧。 万分感谢。

charlie6989

people , about as many as（people) are enrolled in...........
as在此當代名詞