Under FINRA Rule 3110, a broker-dealer must establish a supervisory system including written supervisory procedures. In the context of an investment banking department, which of the following would be the most critical supervisory function?

Why C — Supervising deal-related communications, monitoring information barrier compliance, and reviewing transaction documentation for regulatory adherence

FINRA Rule 3110 requires firms to establish and maintain a system to supervise the activities of each associated person that is reasonably designed to achieve compliance with applicable securities laws and regulations. In an investment banking context, this includes oversight of deal-related communications, ensuring information barriers are functioning properly, and reviewing transaction documents for compliance with securities regulations. Effective supervision is a cornerstone of a compliant investment banking operation.