A Primary Emphasis of the Keynesian School Is the Economy

A primary emphasis of the Keynesian school is the economy:

A) has a tendency to always create a full-employment level of output.
B) has a tendency to always create inflationary pressure at all levels of output.
C) has a tendency to eliminate unemployment by lowering wage rates to create an equilibrium in the labor market.
D) is driven by the supply-side of the market.
E) has a tendency to be in equilibrium at less than full employment.