Which of the Following is a Diploblastic Phylum of Aquatic

Question

Which of the following is a diploblastic phylum of aquatic predators?
A)Cnidaria
B)Annelida
C)Mollusca
D)Arthropoda
E)Echinodermata

Accepted Answer

Cnidaria is the only diploblastic phylum of the given options. They are aquatic predators that include jellyfish, sea anemones, and coral.