Answer:
A, reduce the discount rate
Step-by-step explanation:
Discount rate refers to the amount of Interest that the Federal reserve charge to the banks if the banks want to borrow money from the Federal reserve.
If the federal reserve reduce the discount rate, the banks will be able to afford to larger amount of money from them. This will increase the amount of money that they can loaned to the citizens for their business or consumption activities. It increase the amount of money supply that exist in the market.