FINRA regulates the securities industry primarily by enforcing industry standards and ensuring fair practices among broker-dealers. It monitors trading, enforces compliance, and educates investors, distinguishing its role from other financial regulators. Thus, the primary function of FINRA is to uphold integrity within the securities market. ;
FINRA's primary function is to enforce securities industry standards, ensuring fair practices among broker-dealers. It monitors trading activities and educates investors about the market. Thus, the correct answer is A.
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