-Refer to the Aggregate Demand and Aggregate Supply Schedules in }

Multiple Choice

$$\begin{array} { c c c } \hline \begin{array} { c } \text { Aggregate demand } \\\text { (quantity demanded, } \\\text { in billions of dollars) }\end{array} & \text { Price level } & \begin{array} { c } \text { Aggregate supply } \\\text { (quantity supplied, } \\\text { in billions of dollars) }\end{array} \\\hline \$ 100 & 150 & \$ 1,200 \\200 & 125 & 1,000 \\400 & 100 & 800 \\600 & 75 & 600 \\800 & 50 & 400 \\1,000 & 25 & 200 \\\hline\end{array}$$
-Refer to the aggregate demand and aggregate supply schedules in the exhibit.What is the equilibrium level of output?
 

A)  200 
B)  400 
C)  600 
D)  800