Use the Following Diagram to Answer the Following Questions

Use the following diagram to answer the following questions.

-Refer to Diagram 13-1. Suppose the economy is currently in equilibrium at point A. If government increases spending, this would most likely:

A) shift aggregate demand from AD₁ to AD₂.
B) shift aggregate demand from AD₁ to AD₃.
C) cause unemployment.
D) cause the equilibrium level of real GDP and the equilibrium price level to fall.