Both New Keynesian and New Classical Cycle Theories Claim That

Both new Keynesian and new classical cycle theories claim that

A) a change in the price of oil is the major cause of a business cycle.
B) expected changes in the quantity of money can trigger a business cycle.
C) unexpected changes in aggregate demand trigger a business cycle.
D) shifts in the SAS curve are the main impulse for a business cycle.
E) animal spirits can trigger a business cycle.