Which of the following are true of a fee-for-service system? Select all that apply. Question 9 options: a) Fee-for-service systems compensate providers for each service performed b) As of 2016, more than 85% of U.S. physicians reported being reimbursed under the fee-for-service model c) Most experts agree that fee-for-service models are a major driver of high health care spending d) Many patients prefer fee-for-service arrangements