Answer:
B) The Glass-Steagall Act
Step-by-step explanation:
The Glass-Steagall Act was passed in 1933 and its main purpose was to divide banking activities into investment banks and commercial banks. Banks had to be either one of them, but they couldn't offer both services. It was finally repealed in 1999 by the Financial Services Modernization Act of 1999 which currently allows banks to provide both commercial and investment services.
The Glass-Steagall Act was extremely controversial at its time and it barely passed because Senator Carter Glass didn't have enough support for his law until Representative Henry Bascom Steagall joined him after the law included the creation of the Federal Deposit Insurance Corporation. The FDIC was created in 1933 just after the law was approved and since then it insures depositors from bank failures.