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Verbal·Standard English Conventions·Boundaries

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In a 2023 study, researchers documented a fascinating behavior in the aquatic plant Elodea densa. When exposed to low levels of light, the plant’s        the cellular organs that generate energy from light- reshuffled to form a tightly packed, glass-like surface ideal for collecting more light.

Which choice completes the text so that it conforms to the conventions of Standard English?

A

chloroplasts

B

chloroplasts-

C

chloroplasts.

D

chloroplasts,