What is the 'Other Insurance' provision?

• A. It determines the discount when multiple policies exist.
• B. It defines the insured's duties in reporting losses.
• C. It sets limits for all other policies.
• D. It explains how the policy coordinates with other liability policies and how losses are shared.

Answer: (D)

The main idea here is how a liability policy works with other policies when more than one coverage applies to the same loss. The Other Insurance provision explains how the policy coordinates with other liability policies and how losses are shared. It prevents double collection and gaps by laying out who pays first and how much each policy contributes, often based on pro rata sharing by limits or by a primary/secondary (excess) arrangement. In practice, this clause tells the insured that if another policy also covers the loss, this policy will coordinate payment with those other policies and share the cost according to the agreed method, rather than paying all or nothing.

That’s why this option is correct: it directly describes coordination with other liability policies and how losses are shared. The other choices describe discounting across multiple policies, reporting duties, or setting limits for other policies, none of which capture the function of coordinating and sharing losses among multiple insurances.