What do animals ranging from corals to monkeys have in common?

Unfortunately this question is incomplete as it is a multiple choice question. The following options are provided:

A) body cavity between body wall and digestive system

B) number of embryonic tissue layers

C) type of body symmetry

D) presence of Hox genes

E) degree of cephalization

The answer is D: presence of Hox genes

Hox genes are a group of genes that determine the basic structure and orientation of animals.