| (I) | Chemicals added to food to prevent the growth of microorganisms | [A] | Vector |
| (II) | Nitrogen fixing microoraganisms present in the root nodules of legumes | [B] | Antibiotics |
| (III) | Agent which spreads pathogens form one place to another | [C] | Rhizobium |
| (IV) | Chemicals which kill or stop the growth of pathogens | [D] | Preservatives |
A) I-A, II-B, III-C, IV-D
B) I-A, II-C, III-B, IV-D
C) I-D, II-C, III-A, IV-B
D) I-B, II-A, III-C, IV-D
E) None of these
Correct Answer: C
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