A biologist discovers a new animal in a marine environment that has hexagonal radial symmetry. Of the following methods, which will best help him classify this organism with the deuterostomes or with some other group such as the ctenophores, sponges, or placozoans?
A.) Dissect the animal to see whether or not it has a notochord.B.) Raise the animal in the lab and trace its embryological development.C.) Observe the animal's feeding behavior.D.) Analyze the animal's mode of reproduction.