In a Fee-For-Service Payment Environment, What Incentives Do the Physicians

In a fee-for-service payment environment, what incentives do the physicians have?

A) To perform the most possible services, because the more they do, the more they are paid
B) To do the most complex thing, regardless of need, because they will get paid more
C) To try to do as many procedures as possible in the shortest amount of time, because the more they do, the more they will get paid.
D) All of these are correct.