Some Physicians,hospitals,and Other Health Care Organizations Agree to Make Medical

Some physicians,hospitals,and other health care organizations agree to make medical services available to insureds at discounted prices.Insureds are not required to use these entities,but if they do,care costs are less than if these entities are not used.Such health care entities are called

A) preferred providers.
B) high deductible health plans.
C) Blue Cross/Blue Shield Plans.
D) health savings accounts (HSAs) .