Match the following list of microbes and their importance.
| A. Saccharomyces cerevisiae | 1. Production of immuno suppressive agents |
| B. Monascus purpureus | 2. Ripening of Swiss cheese |
| C. Trichoderma polysporum | 3. Commercial production of ethanol |
| D. Propionibacterium sharmanii | 4. Production of blood-cholesterol lowering agents |
| | A | B | C | D |
| (a) | 3 | 4 | 1 | 2 |
| (b) | 4 | 3 | 2 | 1 |
| (c) | 4 | 2 | 1 | 3 |
| (d) | 3 | 1 | 4 | 2 |
