The Fact That Most States Will Not Allow Nurse Practitioners

The fact that most states will not allow nurse practitioners to work a practice that is not supervised by a physician is an example of how __________.

A) physicians and the AMA maintain expensive professional monopolies over medical practices
B) nursing boards have given up on trying to work directly with physicians
C) physician's assistants are replacing nurses in many practices
D) patients do not trust nurses alone to manage their care