Match the antibiotics in Group I with the microorganisms that produce them in Group II.
Group 1 | Group 2 |
(P) | Streptomycin | (i) | Streptomyces griseus |
(Q) | Bacitracin | (ii) | Bacillus licheniformis |
(R) | Amphotericin B | (iii) | Streptomyces venezuelae |
(S) | Chloramphenicol | (iv) | Streptomyces nodosus |