The insured is required to take which step regarding salvage under their policy?

The correct choice highlights the insured's obligation to take reasonable steps to mitigate further damage following an incident that has resulted in a loss covered by their insurance policy. This duty to mitigate is fundamental in insurance contracts, ensuring that the insured actively participates in minimizing the impact of a loss.

By taking immediate action to prevent additional damage, the insured helps to protect both their interests and those of the insurer. If a policyholder neglects to mitigate damages, it could lead to increased costs, potentially affecting the claim process and might even result in the insurer denying the claim based on failure to fulfill this obligation.

Other options focus on processes or actions that either don't directly address the immediate need to prevent further loss or could be misaligned with policy requirements. For example, submitting a salvage appeal or arranging for immediate repairs does not directly relate to the imperative of mitigating damages. While allowing the insurer to take control of the property might be necessary in some situations, it doesn’t directly pertain to the insured taking proactive steps to prevent additional damages. This duty to mitigate is a crucial aspect of risk management in insurance that ultimately benefits all parties involved.