Figuer: Main Animal Groups Are Noted at the Right. Names Diverging

Multiple Choice

Figuer:
Main animal groups are noted at the right. Names diverging at each node are morphological or body form names. Note that the animal traits key to distinguishing the groups and body forms are not shown.
-If an animal is an invertebrate,this means that the animal

A) does not have a complete digestive tract.
B) has a backbone.
C) does not have a backbone.
D) does not have true tissues.
E) has a complete digestive tract.