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Verbal·Standard English Conventions·Boundaries

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While calling the frogfish (family Antennariidae) a “walking fish” might suggest a creature that has fully transitioned to terrestrial life, the frogfish’s unique locomotion represents a specialized adaptation for movement along the ocean        the frogfish’s modified pectoral fins function similarly to legs, allowing this unusual marine predator to “walk” across the seafloor in the tropical and subtropical waters it inhabits.

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

A

floor,

B

floor:

C

floor and

D

floor