As an elected official, you have been informed that real GDP is below its potential and that action should be taken to encourage economic growth and bring the economy to its long-run equilibrium. If the marginal propensity to consume is 0.8 and the amount of new government spending is $600 billion, by how much would the economy be stimulated? A. $3,000 billion B. –$3,000 billion C. $600 billion D. –$600 billion E. $480 billion