Final answer:
There are twelve regional Federal Reserve banks, part of a system combining federal and private-sector governance, each supporting their distinct geographic areas. Considering as option number a, b and c, option number C is correct.
Step-by-step explanation:
There are twelve regional Federal Reserve banks. The Federal Reserve, often referred to as the Fed, is not just made up of the Board of Governors, but includes these 12 entities, each responsible for a specific geographic area, supporting commercial banks and the overall economy within its district.
The Federal Reserve System is a blend of federal and private-sector leadership, with a Board of Directors for each regional bank elected by the commercial banks in the district, and those boards in turn choose a president for their respective Federal Reserve districts.