Final answer:
During the 2008-2009 Great Recession, the Federal Reserve Bank lowered the reserve requirement to stimulate economic activity and increase the availability of funds for businesses and consumers.
Step-by-step explanation:
During the 2008-2009 Great Recession, the Federal Reserve Bank lowered the reserve requirement to stimulate economic activity. The reserve requirement refers to the percentage of deposits that banks are required to hold as reserves. By lowering this requirement, the Fed was essentially encouraging banks to lend out more money, which would increase the amount of funds available for businesses and consumers.