On the Animal Family Tree,which Group Precedes the Eumetazoans

Question

On the animal family tree,which group precedes the eumetazoans?
A) Ctenophores
B) Sponges
C) Cnidarians
D) Bilaterians
E) Protostomes

Accepted Answer

Sponges are considered the most basal group of animals and therefore precede the eumetazoans on the animal family tree.