Which Statement About Insect Wings Is True

Which statement about insect wings is true?

A) The insect wing may have evolved from an ancestral appendage similar to that of modern spiders.
B) Development of the insect wing is governed by the expression of a gene that is different from the one that governs the crayfish appendage.
C) The pdm gene is expressed in both the wings and legs of insects.
D) Development of the insect wing and development of the crayfish thorax are controlled by the pdm gene.
E) The pdm gene seems to have appeared only recently in evolution,after the divergence of crustaceans and hexapods.