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Verbal·Craft and Structure·Words in Context
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In their study of European rollers, lesser grey shrikes, and 92 other passerine birds in Iran, researchers used mitochondrial sequences to validate established species boundaries. When a particular data point was       , they sought corroboration with the bird’s nuclear DNA markers and morphological features to ensure the exception was an accurate finding.
Which choice completes the text with the most logical and precise word or phrase?
A
anomalous
B
tentative
C
theoretical
D
preliminary