The Wolf 1061c exoplanet is of particular interest to astronomers because _________ proximity to Earth makes it a prime candidate for study.
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writingWhich choice completes the text so that it conforms to the conventions of Standard English?
A
its
B
it's
C
its'
D
their
Correct Answer: A
Choice A is the best answer. "Its" is the possessive pronoun referring to the singular noun "exoplanet." "It's" means "it is," which would make the sentence read "because it is proximity to Earth," which is grammatically incorrect.