Department of Health and GMAT Sentence Correction

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Department of Health and GMAT Sentence Correction

QOD2015_0213
Explanation
A - Incorrect: The pronoun they is ambiguous.

B - Incorrect: Were unsanitary and ranging are not parallel. The relative pronoun "that" is missing.

C - Incorrect: The construction obscures the meaning, which should be that the survey did not find unsanitary conditions in the other 10% -- not that it did not find a range of unsanitary conditions.

E - Incorrect: This option is awkward and wordy. The separation by a semicolon also obscures the connection between unsanitary conditions and range.

D - Correct: This choice makes it clear that 90% had unsanitary conditions which are then described.

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