Which of the Following Did Keynes Think Was a Macroeconomic

Multiple Choice

Which of the following did Keynes think was a macroeconomic problem?  

A)  The economy can tend toward an equilibrium level of output that is below the potential level. 
B)  The economy tends toward a potential level of output that is below the equilibrium level. 
C)  The economy makes the potential and equilibrium levels of output equal. 
D)  The economy can be pushed below the equilibrium level of output by fiscal policy.