Which rule allows consumers to opt out of sharing their private information?

The Financial Privacy Rule is designed to protect consumers' personal financial information by allowing them to control how their information is shared with third parties. Under this rule, consumers have the right to opt out of the disclosure of their private information to non-affiliated third parties. This empowers individuals to maintain a higher level of confidentiality regarding their financial data and restricts financial institutions from sharing sensitive information without consumer consent.

The other choices represent different regulations that pertain to various aspects of financial practices but do not specifically focus on consumers' rights to restrict the sharing of their private information. For example, the MARS Rule is related to mortgage assistance relief services, while the Federal Reserve Loan Originator Compensation Rule addresses how loan originators are compensated, and the Red Flags Rule is aimed at preventing identity theft. None of these rules provide the same opt-out option regarding private information sharing as the Financial Privacy Rule does.