List - I | List - II | ||
| (A) | Aspergillus niger | (I) | Cyclosporin - A |
| (B) | Trichoderma polysporum | (II) | Ethanol |
| (C) | Lactobacillus | (III) | Citric acid |
| (D) | Saccharomyces cerevisiae | (IV) | Lactic acid |
In supervised digital image classification, the number of combinations to be evaluated to select three best bands out of five bands is _____________