To A. increase; lower the reserve requirements B. decrease; lower the discount rate C. increase; raise the federal funds rate D. decrease; conduct open-market purchases E. increase; lower income taxes.

It seems like you're presenting a list of economic actions and their potential effects on the economy, possibly in the context of monetary policy or fiscal policy. However, the options you've provided are not complete statements or questions. If you're looking for the correct pairings of actions and their expected outcomes, here's a brief explanation of each option: A. **To increase; lower the reserve requirements** - Lowering reserve requirements allows banks to lend more, which can increase the money supply and stimulate economic activity. B. **To decrease; lower the discount rate** - Lowering the discount rate makes borrowing cheaper for banks, which can encourage them to lend more, potentially increasing the money supply rather than decreasing it. C. **To increase; raise the federal funds rate** - Raising the federal funds rate typically decreases the money supply by making borrowing more expensive, which can slow down economic activity. D. **To decrease; conduct open-market purchases** - Conducting open-market purchases (buying government securities) increases the money supply, which is contrary to the idea of decreasing. E. **To increase; lower income taxes** - Lowering income taxes increases disposable income for consumers, which can lead to increased spending and economic growth. If you have a specific question or context in mind for these options, please provide more details!