Which of the following is a responsibility of the Securities and Exchange Commission (SEC)?

The Securities and Exchange Commission (SEC) plays a crucial role in maintaining the integrity of the securities markets. One of its primary responsibilities is overseeing the accuracy of investment disclosures. This includes ensuring that companies provide truthful, complete, and timely information to investors regarding their financial condition, business practices, and risks. The SEC's oversight helps to foster transparency and protects investors by helping them make informed decisions based on reliable data.

The other options pertain to different aspects of regulation or activities that fall outside the SEC's jurisdiction. For instance, establishing insurance premiums is typically managed by state insurance regulators, while regulating state life insurance licenses involves state insurance departments rather than federal oversight. Similarly, setting fixed interest rates is generally related to monetary policy governed by the Federal Reserve, rather than the SEC’s regulatory framework. Therefore, the correct answer reflects the SEC’s primary function as a protector of investors and overseer of securities disclosures.