If a country experiences a significant increase in exports, what is the likely impact on its macroeconomic equilibrium?

• A. The aggregate expenditures line remains unchanged.
• B. The aggregate expenditures line shifts upward, potentially increasing GDP at equilibrium.
• C. The slope of the aggregate expenditures line decreases.
• D. The aggregate expenditures line shifts downward, potentially decreasing GDP at equilibrium.

Answer: (B)