Final answer:
Relying on memory is not a risk reduction strategy for REPs; taking notes and informing the broker about potential incidents are effective practices.
Step-by-step explanation:
The practice that is NOT a risk reduction strategy for Real Estate Professionals (REPs) is C) Relying on memory to recall facts or events if needed. Notetaking and documenting discussions, meetings, and actions are essential for effective follow-up and are a good risk mitigation strategy. Likewise, keeping the broker informed of incidents that may lead to a claim is crucial for reducing risk.