Final answer:
Native Americans receive healthcare from the Indian Health Service, a federal agency focused on providing medical and public health services to Native American communities.
Step-by-step explanation:
Most Native Americans receive their health care through the federal government’s Indian Health Service (IHS).
The IHS is responsible for providing direct medical and public health services to members of federally-recognized Native American Tribes and Alaska Native people.
Other government-funded health care programs include Medicare, which serves people over sixty-five years of age or those with certain disabilities, and Medicaid, which provides services to people with very low incomes who meet other eligibility requirements.
It is important to understand that these programs are distinct from the Affordable Care Act, which aimed to provide all Americans with access to affordable health insurance and did not directly provide healthcare services.
Therefore, the correct answer to the student's question is "c) Indian Health Service".