Match the following and choose the correct option.

	Column I		Column II
(a)	Fishes	(i)	two-chambered heart
(b)	Mammals	(ii)	three-chambered heart with undivided ventricle
(c)	Amphibians	(iii)	three-chambered heart with incompletely divided ventricle
(d)	Reptiles	(iv)	four-chambered heart

	(a)	(b)	(c)	(d)
1	i	iv	ii	iii
2	i	ii	iv	iii
3	i	iv	iii	ii
4	ii	i	iii	iv

• A

  1

• B

  2

• C

  3

• D

  4