Final answer:
The type of MA Plan that is an HMO but also covers some out-of-network services, typically at a higher cost, is the Point-of-Service (POS) Plan. The correct option is b.
Step-by-step explanation:
The type of Medicare Advantage (MA) Plan that is a Health Maintenance Organization (HMO) plan, which also covers some benefits outside of the network, generally at a higher cost, is a Point-of-Service (POS) Plan.
Unlike Private Fee-for-Service (PFFS) plans, POS plans allow for some out-of-network coverage. This contrasts with a Preferred Provider Organization (PPO), which typically has a broader network and more flexibility.
Medicare Supplement Insurance Plans are not Medicare Advantage plans and thus offer a different kind of coverage that helps pay for the costs not covered by original Medicare. The correct option is b.