can anyone help me please with biology its the scientific method dm me so i can give you the google doc link please ill give anyone 5$

the cladogram shown here shows similarities and differences among several classes of vertebrates. anatomically, the four have limb structure as their common ancestor. we might separate the mammals from the other three classes because they a) divergent; do not lay eggs b) identical; are warm-blooded c) varied; a four chambered heart d) homologous; have mammary glands

i believe it is c: genes for body color and wing size are inherited separately from each parent.