Until Recently Physicians Have "Been the Voice of Authority

Multiple Choice

Until recently physicians have "been the voice of authority". Physician authority has been undermined by a number of factors.  Which one is not one of those factors?

A) Other stakeholders have taken a visible and more active role in deciding the diagnosis and course of treatment.
B) Pharmaceutical companies market drugs directly to consumers.
C) Patients are overwhelmed with information making them apathetic patients.
D) Insurance companies often set the terms of care and treatment.