Correct option is D
The correct answer is (d) i-d, ii-c, iii-b, iv-a.
• Jelly fish belong to the phylum Coelenterata (Cnidaria).
• Cray fish belong to the phylum Arthropoda (often considered as insects for simplicity, but they are actually crustaceans within Arthropoda).
• Whale fish belong to the phylum Chordata, class Mammalia.
• Devil fish (another name for octopus) belong to the phylum Mollusca.
