(A) did not so much wish for more women senators but more moderate Republican ones
(B) wished not so much for more senators who were women than moderate Republicans
(C) did not wish so much for more women senators as for more moderate Republicans
(D) did not wish for more women senators so much as moderate Republicans
(E) wished for more senators who are moderate Republicans than women
Solution:
Idioms
"so much X ... as Y ... " is the correct idiom.
C is the only option that follows the above mentioned idiom and hence is the best choice.
Rest all four choices are unidiomatic.
Sentence Correction - 1000 Questions with Solution: