The Office of the Comptroller of the Currency Is the Main

The Office of the Comptroller of the Currency is the main supervisor for

A) national banks that are part of a financial holding company or a bank holding company.
B) national banks that are not in a financial holding company or a bank holding company.
C) state banks that are not members of the Federal Reserve and are not in a financial holding company or a bank holding company.
D) state banks that are members of the Federal Reserve System.