Use the Figure Below to Answer the Following Questions

Use the figure below to answer the following questions.
Figure 11.2.1
There are no exports or imports in this economy.
-Refer to Figure 11.2.1.When real GDP is equal to Y_a, then aggregate planned expenditure

A) exceeds real GDP, and real GDP increases.
B) exceeds real GDP, and real GDP decreases.
C) is less than real GDP, and real GDP decreases.
D) is equal to real GDP, and real GDP neither increases nor decreases.
E) is less than real GDP, and real GDP increases.