Identify Which of the Following Feature(s) Are Found in the Cnidarians

Identify which of the following feature(s) are found in the cnidarians but not in the comb jellies.

A) They are free swimming invertebrates.
B) They contain a capsule called a nematocyst.
C) Produce movement by the beating of cilia.
D) Much of the body is composed of a jellylike substance called mesoglea.
E) These species can be found in the marine environment.