What is a key feature of a group disability income policy?

A group disability income policy is designed to provide periodic income to participants while they are unable to work due to a disability. This income replacement ensures that individuals have a source of financial support during their recovery, which is a fundamental purpose of disability insurance. The focus on providing ongoing income distinguishes this type of policy from other types of insurance products.

The other options reflect aspects that do not typically characterize group disability income policies. Individualized coverage for members is more aligned with individual policies, where terms and conditions can be customized for each person. High premiums based on health status would be a feature of individual policies, where underwriting takes into account the applicant's health history. Lastly, while inclusion of business policies can be relevant in certain contexts, it is not a defining characteristic of group disability income policies, which primarily aim to cover income for individuals within a group setting rather than focusing on business-related insurance needs.