Which of the following is an example of loss control?

Loss control refers to actions taken to reduce the frequency or severity of losses, thereby minimizing potential claims and overall risk. Installing a security system is a practical step taken to prevent theft or damage, which directly aligns with the concept of loss control. By enhancing security measures, an individual or business is actively working to mitigate the risks associated with property loss, thereby potentially reducing insurance claims and related costs.

Other options represent different concepts related to insurance and risk management. Purchasing multiple insurance policies does not inherently reduce risk; instead, it provides broader coverage. Increasing the deductible amount can lower premium costs but does not necessarily control losses; it shifts more risk to the insured. Refusing to purchase insurance eliminates coverage but does not address the underlying risks or losses that could occur. Thus, installing a security system stands out as a proactive measure specifically aimed at loss control.