Which of the following is not included as an additional cause of loss in the broad form of a commercial property policy?

The correct answer is that replacement cost is not included as an additional cause of loss in the broad form of a commercial property policy. In the context of property insurance, "additional causes of loss" refer to specific risks or perils that are explicitly covered by the policy. The broad form typically covers perils like fire damage, vandalism, and water damage, which are recognized risks associated with property and are included to provide comprehensive protection to the insured property.

Replacement cost, on the other hand, pertains to the method of settling a claim rather than a specific risk covered by the policy. It refers to the amount required to replace the damaged property or repair it without deducting for depreciation. Therefore, while replacement cost is an important concept in determining how a claim will be paid, it does not represent an additional cause of loss but rather a valuation method used once damages occur from an insured peril. This distinction is essential in understanding how commercial property policies function and helps clarify the coverage provided by such policies.