Lions, tigers, and leopards have _________ that allow them to hunt effectively in the dark.
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writingWhich choice completes the text so that it conforms to the conventions of Standard English?
A
an eye that sees
B
a retina which adapts
C
retinas that adapt
D
a vision capability
Correct Answer: C
Choice C is the best answer. The subject includes three animals, so the plural noun "retinas" is required to describe their biological features collectively.
Choice A is incorrect because "an eye" is singular. Choice B is incorrect because "a retina" is singular. Choice D is incorrect because "a vision capability" is singular.