One of the following is a very unique feature of the mammalian body [CPMT 1987; CBSE PMT 2004]

One of the following is a very unique feature of the mammalian body [C

1.	One of the following is a very unique feature of the mammalian body [CPMT 1987; CBSE PMT 2004]
A.	Four chambered heart
B.	Rib cage
C.	Homeothermy
D.	Presence of diaphragm
Answer» E.