Match the antibiotics in column I with their microbial sources in column II:

Step 1: Antibiotics are matched with their microbial sources based on their discovery and production:
- (a) Chloromycetin (Chloramphenicol): Produced by Streptomyces venezuelae (3).
- (b) Erythromycin: Produced by Streptomyces erythreus (4).
- (c) Streptomycin: Produced by Streptomyces griseus (1).
- (d) Terramycin (Oxytetracycline): Produced by Streptomyces aurifaciens (2).
Step 2: Thus, the matches are: (a)-(3), (b)-(4), (c)-(1), (d)-(2).
Match the LIST-I with LIST-II. \[ \begin{array}{|l|l|} \hline \textbf{LIST I} & \textbf{LIST II} \\ \hline A. \ \text{Franklin Stahl} & I. \ \beta\text{-form of DNA} \\ B. \ \text{Maurice Wilkins} & II. \ \text{Estimated absolute amount of each Base} \\ C. \ \text{Erwin Chargaff} & III. \ \text{Proposed two polynucleotide chain} \\ D. \ \text{Watson and Crick} & IV. \ \text{Individual strands of Duplexes are entirely heavy or light} \\ \hline \end{array} \]