Explanation

The sentence opens with a subject that-clause: "That fabricated data slipped past the editorial screening... was a disquieting revelation." The "yet" pivot introduces the key claim: "the finding could hardly be dismissed as _______ " The "given that" clause provides the reason: "an independent audit... unearthed nearly identical rates." If a second, independent investigation found the same thing, the original finding cannot be dismissed as a fluke, anomaly, or one-off aberration. The blank must mean abnormal, atypical, or deviating from the norm.

- A. aberrant - Deviating from what is normal or expected; anomalous. "Could hardly be dismissed as aberrant" perfectly captures the idea that the finding cannot be written off as a fluke, because replication confirms it. Correct.
- B. fortuitous - Happening by chance; accidental. While replication might suggest the finding is not accidental, the word does not capture the sense of being an outlier that "aberrant" does. Incorrect.
- C. partisan - Biased, one-sided, prejudiced. The sentence is about whether the finding is a fluke, not whether it is biased. Incorrect.
- D. innocuous - Harmless, inoffensive. The sentence is about whether the finding is anomalous, not whether it is harmful. Incorrect.
- E. specious - Misleading, superficially plausible but actually wrong. The finding is corroborated, not specious. Incorrect.