Answer:
The Federal Reserve
Step-by-step explanation:
Also known as the Fed represents United State's Central Bank. Like every other Central Bank around the world, it is responsible for ensuring the stability, safety and flexibility of the United State's monetary system.
Basically, there are four functions of the Federal Reserve:
1. Monitoring national monetary policies to ensure the stability of the financial system
2. Supervision of banks and protection of the right of citizens
3. Ensuring the stability of the financial market by containing any risk that may occur
4. Providing specific monetary or financial services to the government of the United States.
The need for banks to report their legal reserves and depositors' funds to the Federal Reserve is apparently a part of the supervisioning responsibility of the Federal Reserve.