Final answer:
2) Health maintenance organization
A health maintenance organization (HMO) offers health insurance with a fixed monthly premium and little or no deductible, focusing on preventive care and using a network of providers.
Step-by-step explanation:
An organization that offers health insurance at a fixed monthly premium with little or no deductible, and works through a primary care provider is called a health maintenance organization (HMO).
Unlike the fee-for-service system where medical care providers are paid according to the services they provide, an HMO receives a fixed amount per person enrolled in the plan, regardless of how many services are provided.
This model prioritizes keeping people healthy and may involve a network of doctors and facilities that plan members are required to use.