What must be prominently displayed in a broker's principal place of business?

In the context of real estate brokerage in Tennessee, it is a legal requirement for a broker to prominently display all licenses at their principal place of business. This includes the broker’s own license as well as those of any affiliated agents. Displaying licenses serves several purposes: it helps ensure compliance with state regulations, provides transparency to clients and the public, and represents an official acknowledgment of the qualifications and authority of the broker and their agents.

The prominence of this display is essential, as it allows potential clients and associates to easily verify the legitimacy and credentials of the business they are engaging with, fostering trust and credibility in the professional relationship. Having this information visible also aligns with Tennessee’s regulations on business practices within the real estate industry. This is why the correct answer revolves around the necessity of displaying licenses, making it a crucial aspect of a brokerage's operations.