Which of the following is probably most useful at the perimeter of a property?

A fence is the most useful at the perimeter of a property as it serves as a physical barrier that defines the boundaries of the area and helps to deter unauthorized access. Fences provide essential security by preventing intruders from easily entering the property, thereby protecting whatever assets, people, or data are contained within.

While a safe is used for protecting valuables or sensitive information within a property, it does not play a role in securing the perimeter. A data center, which houses various computing facilities and associated components, is typically located within the property for operational purposes and does not contribute to perimeter security. Similarly, a centralized log storage facility is focused on the storage of log data and does not relate to physical security at the boundaries of a property. The primary function of a fence aligns directly with the need for perimeter defense, making it the most relevant choice for this context.