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.
-Which of the following characteristics do all animals share?

A) They are single-celled prokaryotes.
B) They are multicellular prokaryotes.
C) They are single-celled eukaryotes.
D) They are multicellular eukaryotes.