Ethnobotanist Mei Takahashi spent eleven years interviewing elders across the Ryukyu Islands for a field guide to the region’s medicinal plants, published in 2016. Documenting more than 600 species along with their traditional names and uses, .
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Verbal·Standard English Conventions·Form, Structure, and Sense
mediumWhich choice completes the text so that it conforms to the conventions of Standard English?
A
researchers have praised the guide, which preserved knowledge previously passed down only orally, as a model for future work.
B
the guide’s preservation of knowledge previously passed down only orally has been praised as a model for future work.
C
knowledge previously passed down only orally was preserved by the guide, which has been praised as a model for future work.
D
the guide preserved knowledge previously passed down only orally and has been praised as a model for future work.