The correct option is A Mollusca
Cuttlefish is commonly known as Loligo. It belongs to phylum Mollusca. The characteristics features include large, W-shaped pupils, eight arms, and two tentacles furnished with denticulated suckers, by which they secure their prey. Cuttlefish feeds on small molluscs, crabs, shrimp, fish, octopuses and worms. Its predators include dolphins, sharks, fish, seals, seabirds, and other cuttlefish. So, the correct answer is option A.