Economics for Today 9th Edition by Irvin Tucker

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Use the aggregate expenditures model and assume an economy is in equilibrium at $5 trillion, which is $250 billion above full-employment GDP. If the marginal propensity to consume (MPC) is 0.60, full-employment GDP can be reached if government spending
A) decreases by $60 billion.
B) decreases by $100 billion.
C) decreases by $250 billion.
D) is held constant.