Which of the following is NOT a correct statement regarding ctenophores?

A) They are an important part of plankton.
B) They are distinct from the species known as comb jelly.
C) They are biradially symmetrical.
D) They do not have stinging nematocysts.
E) They have a nervous system.

Ctenophores

Phylum of marine animals (comb jellies) whose bodies consist of two layers of cells enclosing a gelatinous mass. The outer surface is covered with comblike rows of cilia, by which the animal moves.

Nematocysts

Specialized cells in cnidarians (like jellyfish) that shoot out a toxic barb in self-defense or to capture prey.

Biradially Symmetrical

A type of symmetry in organisms where the body can be divided into mirror-image halves in two different planes.