By extracting and sequencing ancient environmental DNA preserved within Greenland’s Kap København Formation, a two-million-year-old subarctic ecosystem inhabited by mastodons, poplar trees, and Atlantic horseshoe crabs.
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Verbal·Standard English Conventions·Form, Structure, and Sense
easyWhich choice completes the text so that it conforms to the conventions of Standard English?
A
a detailed reconstruction of biodiversity was achieved by paleogeneticist Eske Willerslev and his research team, revealing
B
paleogeneticist Eske Willerslev and his research team reconstructed
C
the discovery of two-million-year-old biodiversity was made possible when researchers reconstructed
D
it was possible for paleogeneticist Eske Willerslev and his research team to reconstruct