Q. Match the industrial products mentioned in Group I with their producer organisms in Group II
Group I Group II
P. Citric acid 1. Trichoderma viride
Q. Cellulase 2. Clostridium acetobutylicum
R. Vitamin B12 3. Aspergillus niger
S. Butanol 4. Propionibacterium freudenreichii
| (A) P-4, Q-3, R-1, S-2 | (B) P-3, Q-1, R-2, S-4 | |
| (C) P-2, Q-1, R-4, S-3 | (D) P-3, Q-1, R-4, S-2 |
