Which of the following best describes a multi-line insurance company?

A multi-line insurance company refers to an insurer that offers a diverse range of insurance products across various categories. This includes not only life insurance and health insurance but often extends to property, casualty, and other types of coverage as well. The key characteristic of a multi-line insurer is its ability to provide multiple lines of insurance under one organization, making it convenient for consumers who prefer to bundle their insurance needs with a single provider. This can also lead to premium discounts for policyholders who choose to have multiple types of coverage, enhancing customer loyalty and satisfaction.

The other options specify limitations that do not align with the definition of a multi-line insurance company. Selling only health or life insurance restricts the company's offerings to a single line, which does not fulfill the criteria for being classified as multi-line. Moreover, being limited to just one type of risk suggests a narrow focus, contradicting the broader approach of a multi-line insurance provider.