The USGovernment's Medicare Program Is the Primary Financier (Or Payer)of Health

The U.S.government's Medicare program is the primary financier (or payer) of health insurance for the aged.In this situation,the government is

A) a monopsonist that allows providers to charge whatever they want but imposes quality controls.
B) a monopolist that imposes price controls to reduce overall cost.
C) a monopsonist that imposes price controls to reduce overall cost.
D) a monopolist that imposes price controls to increase overall quality.
E) both a monopolist and monopsonist that makes active use of price controls.