A Distortion in the Healthcare Market Can Occur When

A distortion in the healthcare market can occur when

A) health insurance companies require individuals to have a primary care doctor.
B) doctors are rewarded for reducing a patient's recovery time after surgery.
C) the involvement of health maintenance organizations discourages efficiency in health care expenditures.
D) the existence of healthcare insurance encourages customers to seek more health care than they otherwise would.
E) when there is a lack of restrictions for entry into the market for delivering health care.