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Verbal·Craft and Structure·Words in Context

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To establish whether the wooden beams in a coastal settlement came from the same decade, archaeologists compared radiocarbon estimates with a regional tree-ring sequence. The tree-ring matches independently        the radiocarbon chronology, increasing the researchers’ confidence that construction occurred around 1020 CE.

Which choice completes the text with the most logical and precise word or phrase?

A

obscured

B

corroborated

C

postponed

D

standardized