Why Didn't the Supply of Medical Care Increase in the United

Why didn't the supply of medical care increase in the United States in spite of increase in its price?

A) Pharmacists were earlier restricted to dispense drugs but now they are allowed to do so
B) New drugs can easily enter the U.S.market as government regulations are lax
C) The Medicare system restricts the movement of resources from one part of the market to another
D) Relaxation of the restrictions imposed by the U.S.government earlier
E) The market for medical care is a free and unregulated market.