Bioactive molecule statin/cyclosporin-A is a yeast product and is produced by Monascus purpureus.

Explanation

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks about the bioactive molecules statin and cyclosporin A, specifically identifying which one is produced by the yeast Monascus purpureus.

2. **Identifying the Organism**: Monascus purpureus is a type of yeast known for its ability to produce various bioactive compounds.

3. **Researching the Bioactive Molecules**:
- **Statin**: This is a class of drugs that are used to lower cholesterol levels in the blood. Statins work by inhibiting the enzyme HMG-CoA reductase, which plays a central role in the production of cholesterol in the liver. Monascus purpureus is known to produce statins.
...