Match the following column and choose the correct option. 

	Column I		Column II
(A)	Nitrogenase	(i)	Mg
(B)	Alcohol dehydrogenase	(ii)	Mo
(C)	Rubisco	(iii)	Fe
(D)	Catalase	(iv)	Zn

	A	B	C	D
1.	ii	iv	i	iii
2.	iii	iv	ii	i
3.	ii	i	iv	iii
4.	ii	iii	i	iv

• A

  1

• B

  2

• C

  3

• D

  4