Fee-for-service (FFS) is a method of administering health insurance benefit payments in which ___?
A) The insurer pays a fixed amount for each service provided, regardless of actual cost
B) The insured pays a set fee for each medical service received
C) The provider bills the insurer directly for each service rendered, and the insurer reimburses the provider based on a predetermined fee schedule
D) The insured receives a lump sum payment upon diagnosis of a covered medical condition