逻辑4

寂寞的自由

9．Dr. Hakuta’s research among Hispanic children in the United States indicates that the more the children use both Spanish and English, their intellectual advantage is greater in skills underlying reading ability and nonverbal logic.

(A) their intellectual advantage is greater in skills underlying reading ability and nonverbal logic
(B) their intellectual advantage is the greater in skills underlaying reading ability and nonverbal logic
(C) the greater their intellectual advantage in skills underlying reading ability and nonverbal logic
(D) in skills that underlay reading ability and nonverbal logic, their intellectual advantage is the greater

哪个是正确答案呢？为什么呢？其他错在哪里呢？谢谢
(E) in skills underlying reading ability and nonverbal logic, the greater intellectual advantage is theirs

colorsofthewind

语法吧。
答案是c么？使这个结构，套上就行了。
the more... the more...
其他地按照ets的说法就是不是idiom.