GMAT Sentence Correction (SC) | Re: Suffering from depression and frightened

Sorry, I made a mistake - glancing quickly I just assumed D and E had the same structure because they begin the same way. Only E uses a passive construction; D is active. But D has a few problems. When it says "the disease", that would normally refer back to the ailment mentioned earlier. This sentence makes perfect grammatical sense:

Author William Styron turned his despair into a harrowing yet illuminating account of the disease.

Here "the disease" refers back to "his
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