5. Which of the following is NOT true of members of the phylum Cnidaria?

Which of the following is NOT true of members of the phylum Cnidaria?

A) They are capable of locomotion because they have true muscle tissue.

B) They can feed with tentacles.

C) They have either, or both, of two body forms: sessile polyps and motile medusae.

D) They may use a gastrovascular cavity as a hydrostatic skeleton.

E) They are the simplest organisms with a complete alimentary canal two openings