What statement describes the role of the federal Reserve system?

The Federal Reserve System serves as the central bank of the United States, responsible for implementing monetary policy to promote maximum employment, stable prices, and moderate long-term interest rates. It also regulates and supervises banks to ensure the safety and soundness of the banking system, provides financial services to the government and financial institutions, and acts as a lender of last resort during financial crises. Through these functions, the Fed aims to maintain a stable and efficient economy.