A nurse is collaborating with a case manager for a client who is part of a health maintenance organization. Which of the following payment structures does a health maintenance organization typically use?

The provider directly bills the client for a predetermined percentage of the cost of services.

The client pays the insurer a percentage of the total costs for each service provided.

The provider receives a fixed sum from the client on a monthly or yearly basis.

The client pays the provider directly for each individual service rendered.