When a price floor is binding, is the price floor set above or below the market equilibrium price?

The U.S. economy has had persistent inflation in recent decades. A possible explanation for the inflation is that

A) there have been decreases in the growth rate while aggregate demand has remained unchanged. B) growth in aggregate demand has been greater than growth in aggregate supply. C) there have been decreases in aggregate demand while aggregate supply has remained unchanged. D) there have been increases in the growth rate while aggregate demand has remained unchanged.

Suppose a player has a dominant strategy. Would she choose to play a mixed strategy (such as playing two strategies with probability 50-50)? Why or why not?

What will be an ideal response?