中国大学MOOC: Deep-sea pelagic fishes are characterized by all of the following except:

Deep-sea pelagic fishes are characterized by all of the following except: A: Color spotted with red. B: Flabby muscles. C: Small eyes. D: Absent or reduced swim bladder.

The oceanic zone in which I would find an organism like a crab, octopus, or clam would be the A: benthic B: pelagic C: oceanic D: neritic E: profundal