Which group does the Securities and Exchange Commission (SEC) work with closely to oversee broker-dealers?

The Securities and Exchange Commission (SEC) is the primary federal regulator of U.S. securities markets, but it works closely with self-regulatory organizations to oversee market participants. The Financial Industry Regulatory Authority (FINRA) is the main self-regulatory organization responsible for supervising broker-dealers, enforcing rules, and protecting investors. FINRA operates under SEC oversight, creating a layered regulatory framework that combines government authority with industry-specific expertise. This collaboration enhances market integrity and investor protection. Option C correctly identifies FINRA as the SEC’s primary partner in broker-dealer oversight.