Match column-I with column-II and select the correct answer using the codes given below. Column-I Column-II A. Streptomyces I. Food poisoning B. Rhizobium II. Source of antibiotics C. Nitrosomonas III. Nitrogen fixation D. Acetobacter IV. Nitrification V. Vinegar synthesis

• A. A-II         B-III      C-I      D-V
• B. A-II         B-III      C-IV    D-V
• C. A-IV        B-V     C-I       D-III
• D. A-V         B-I      C-III     D-IV