Both medicare and medicaid are mandatory expenditures in the federal government’s budget.
what is the main difference between medicare and medicaid?
a. medicare and medicaid both the unemployed only.
b. medicare the elderly, and medicaid the poor.
c. medicare and medicaid both provide health insurance for children only.
d. medicare aids the poor in other countries, while medicaid the poor in america.

B. Medicare helps the elderly, and Medicaid helps the poor

Explanation:

Medicare and Medicaid are programs designed by US government to help people related to healthcare costs and are mandatory expenditures in the federal govt. budget.

Medicare has two parts A and B, part A provides people with coverage for hospitalization for patients that are aged 65 years or above too, no matter what is their income. Part B provides coverage for medical equipment and services like wheelchair, doctor's visit etc.

Medicaid is designed for such people that have very low incomes, such people that can't access these medical resources.