Unlike Medicare, Medicaid eligibility coverage varies from state to state. An individual ruled ineligible in one state may qualify for coverage in another state. Why do Medicaid eligibility rules and coverage vary while Medicare's do not?

a) Because Medicaid is funded by state and federal governments, whereas Medicare is solely funded by the federal government.
b) Because Medicaid primarily serves low-income individuals, while Medicare serves individuals aged 65 and older.
c) Because Medicaid recipients must meet specific income and asset criteria set by each state, whereas Medicare eligibility is based on age or disability.
d) Because Medicaid covers a broader range of services compared to Medicare.