Answer:
A key role of the Federal Reserve in the US economy is to help maintain financial and economic stability.
Step-by-step explanation:
The Federal Reserve monitors the US economy and sets monetary policy to ensure that it is functioning efficiently, promoting economic growth and low unemployment. The Federal Reserve also serves as the lender of last resort and regulates the banking system to protect consumers and ensure a safe and sound financial system. Additionally, the Federal Reserve has the authority to issue currency, manage the nation's money supply, and set interest rates.