The warning refers to the coinsurance clause. Coinsurance requires the insured to carry insurance equal to at least a stated percentage of the property’s value, commonly 80%, 90%, or 100%, depending on the policy and risk. If the insured carries less than the required amount, the insurer may reduce the claim payment proportionately, even for a partial loss. This is why the clause can “limit the amount payable.” The purpose is to encourage adequate insurance to value and prevent insureds from deliberately underinsuring property while expecting full recovery for partial losses. Option B is incorrect because stacked limits involve combining limits and is not the standard warning phrase. Option C is not correct because exclusions remove or restrict coverage for specified causes or property, but the quoted wording specifically points to a payment-limiting clause. Option D is not the standard property wording concept being tested. Brokers must explain coinsurance clearly because clients often misunderstand it until a claim settlement is reduced. References/topics: Property Insurance—Wordings; coinsurance, insurance to value, partial loss settlement, amount payable limitation.