Question

the federal reserve bank of the united states is also known as the
peoples bank.
central bank.
world bank.
retail bank.

Explanation:

The Federal Reserve Bank (Fed) is the central bank of the United States. A central bank is responsible for a country's monetary policy and financial system stability. "People's bank" is not a standard term for the Fed, the World Bank is an international financial institution, and a retail bank serves individual consumers (not the role of the Fed).

Answer:

B. central bank.