Answer:
a. The Fed
Explanation:
The Fed ensures Safety and soundness (immunity and quality standards) for banks through regulations and supervision.
1. Their Supervision involves examining the financial accounts of individual banks and evaluating their compliance with laws and regulations.
An example of their supervisory role is their requirement on banks to have enough capital incase of losses.
2. Regulation involves setting rules and guidelines for the entire banking system. The The Dodd-Frank Act is a noteworthy example that grants the Fed powers to regulate banks.