Final answer:
Clients purchase a Medigap policy to cover the out-of-pocket deductibles and co-insurance amounts required by the traditional Medicare plan.
Step-by-step explanation:
A Medigap policy is purchased by clients to cover the out-of-pocket deductibles and co-insurance amounts required by the traditional Medicare plan. It helps fill the gaps in coverage that Original Medicare does not cover, such as deductibles, coinsurance, and some copayments. Medigap policies are designed to work alongside Original Medicare and can help reduce the overall healthcare costs for individuals.