Which of the following advertising practices is lawful under South Dakota law?

The advertising practice that is deemed lawful under South Dakota law involves a website stating that a salesperson represents buyers in their property search. This aligns with transparency and ethical standards in real estate advertising. It clearly communicates the role of the salesperson, which helps potential clients understand what services are being offered and establishes a professional relationship built on trust.

Advertising that focuses solely on the agent's personal number may not provide sufficient information about the services offered, while flashy ads that make promises about the lowest prices can be misleading and may violate regulations concerning truthful advertising. Lastly, advertising a property with an undisclosed commission rate can lead to misunderstandings about the costs associated with buying or selling the property, which is also considered unlawful in the context of fair and honest real estate practices. Therefore, the option that clearly states the nature of the relationship between the salesperson and potential buyers adheres to the appropriate legal standards in South Dakota.