Final answer:
TRICARE is the government-sponsored health benefits plan among the given options, catering to military service members, retirees, and their families.
Step-by-step explanation:
The government-sponsored health benefits plan among the options provided is d. TRICARE. This plan specifically serves uniformed service members, retirees, and their families. It's one of the several government-funded healthcare programs, which also include Medicare and Medicaid. Notably, Medicare provides health insurance to individuals over the age of 65 or those with certain disabilities and is funded by payroll taxes. Medicaid, on the other hand, offers health services to individuals and families with very low incomes who meet other eligibility requirements. Another example of a government-sponsored health system is Canada's system of socialized medicine, but that option is not listed among the choices provided in this question.