Which of the Following Statements Is TRUE of Chelicerates

Which of the following statements is TRUE of chelicerates?

A) Like myriapods, many chelicerates produce cyanide-containing compounds that act as deterrents to predators.
B) Chelicerates, unlike insects and crustaceans, do not actually have antennae.
C) Like all other types of arthropods, chelicerates have exoskeletons composed of silica (which also constitutes the skeletons of certain sponges) .
D) All chelicerates are terrestrial animals; no chelicerates exist in aquatic or marine environments.
E) Certain chelicerates have wings, but these structures are typically protected under a hard shell (much like the wings of beetles) .