Answer the Question on the Basis of the Following Aggregate

Multiple Choice

Answer the question on the basis of the following aggregate demand and supply schedules for a hypothetical economy: $\begin{array}{c}\begin{array}{c}\text {Amount of Real }\\\underline{\text {Output Demanded}}\\\$ 200 \\300 \\400 \\500 \\600\end{array}\begin{array}{c}\text {Price Level}\\\underline{\text {(Index Value) }}\\300\\250\\200\\150\\100\end{array}\begin{array}{c}\text {Amount of Real}\\\underline{\text {Output Supplied}}\\\$ 500 \\450 \\400 \\300 \\200\end{array}\end{array}$ Refer to the data.If the amount of real output demanded at each price level falls by $200,this might have been caused by:

A) an increase in net exports.
B) a worsening of business expectations.
C) an increase in consumer wealth.
D) a decrease in the personal income tax.