Which of the following is an example of an other block policy?

An inland marine commercial floater policy is considered an other block policy because it encompasses a unique type of coverage that doesn't fit neatly into standard categories of insurance. These policies are designed to cover specific types of property that are in transit or are mobile in nature, providing coverage for items such as equipment, goods, or materials that are not confined to a fixed location.

Inland marine insurance originated from the need to cover goods that were transported over bodies of water but has evolved to include a variety of coverage types that protect against risks associated with the movement and storage of property. This specialized nature distinguishes it from more conventional types of insurance, such as auto, health, or umbrella policies, which are standardized in their purposes and coverages.

Other options in the question represent more commonly encountered types of insurance that fall into defined categories. Auto insurance specifically relates to motor vehicles, health insurance pertains to medical expenses, and umbrella policies provide additional liability coverage beyond the limits of primary insurance policies. Each of these has a clear framework and classification, making inland marine commercial floater policies a distinct choice within the realm of insurance offerings.