Final answer:
Among the options mentioned, Relative Value units (RVUs) is the reimbursement method that is considered Fee for Service.
Step-by-step explanation:
In a fee-for-service health financing system, medical care providers receive reimbursement according to the cost of services they provide. Fee-for-service is a reimbursement method in which providers are paid for each specific health care service they deliver. Among the options mentioned, Relative Value units (RVUs) is the reimbursement method that is considered Fee for Service.