| List - I | List - II |
|---|---|
| (A) Bacillus thuringiesis | (I) Synthetic Human Insulin |
| (B) Agrobacterium | (II) ADA gene therapy |
| (C) E. Colt | (III) Cry gene |
| (D) Retroviral Vector | (IV) Vector carrying nematode-specific genes |
In supervised digital image classification, the number of combinations to be evaluated to select three best bands out of five bands is _____________