GMAT Sentence Correction (SC) | Re: A recent study, published by the California Bureau of

This problem requires that you properly frame the comparison: “people who sent in resumes with these characteristics had a more difficult time getting called back than people did who had resumes with these characteristics.” In (A) and (B) the “as” is incorrect: you say “more than” not “more as”. In (C), you need a “with” after the “but”: without it, the sentence means that the resume showed qualifications AND white names, clearly nonsensical. For (D), the “did” is in
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