Match column I with column II and select the correct option.

	Column I		Column II
A.	Rhizobium	i.	Production of human insulin
B.	Bacillus thuringiensis	ii.	Production of Bt toxin
C.	Escherichia coli	iii.	Scavenging of oil spills
D.	Pseudomonas putida	iv.	Nif gene

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

• A

  1

• B

  2

• C

  3

• D

  4