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Re: The homicide detectives didn’t truly understand the
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13 Sep 2017, 17:50
Explanation
The clue is that the criminal carried out heinous acts, so the blank describing the criminal must be something like evil. Both enormity and iniquity can mean evil, so choices (B) and (D) give you appropriate, equivalent sentences. Choices (C) and (E) give equivalent meanings, but the sentence doesn’t support the characterization of the criminal as clever.
Neither pulchritude, which means beauty, nor perfidy, which means disloyalty, makes sense in the blank, so eliminate choices (A) and (F).
Hence options B and D are best fit!