Flagellated Canals of Syconoid Sponges Form by Evagination of the Body

Flagellated canals of syconoid sponges form by evagination of the body wall and these sponges often develop through a simple vase-like stage.Which of the following is a logical hypothesis based on this evidence?

A) Asconoid sponges were derived from syconoid ancestors.
B) Leuconoid sponges were derived from syconoid ancestors.
C) Syconoid sponges were derived from leuconoid ancestors.
D) Syconoid sponges were derived from asconoid ancestors.
E) Leuconoid sponges were derived from asconoid ancestors.Syconoid sponges may have evolved through an asconoid body plan.All syconoid sponges,however,do not share a common ancestor.This transition to the syconoid stage may have occurred more than once.