OG11-108

118. Students in the metropolitan school district lack math skills to such a large degree as to make it difficult to absorb them into a city economy becominq ever more dependent on information-based industries.
(A)        lack math skills to such a large degree as to make it difficult to absorb them into a city economy becoming
(B)        lack math skills to a large enough degree that they will be difficult to absorb into a city's economy that becomes
(C)        lack of math skills is so large as to be difficult to absorb them into a city's economy that becomes
(D)        are lacking so much in math skills as to be difficult to absorb into a city's economy becoming
(E)        are so lacking in math skills that it will be difficult to absorb them into a city economy becoming
E correct. 但谁可以告诉becominq ever more dependent on information-based industries.是修饰什么？有点看不懂这个句子？

city economy