Answer the Question on the Basis of the Following Table

Answer the question on the basis of the following table for a particular country in which C is consumption expenditures,I_g is gross investment expenditures,G is government expenditures,X is exports,and M is imports.All figures are in billions of dollars.Each question is independent of other question using the same table,unless otherwise stated. $\begin{array}{c}\begin{array}{c}\underline{\text {Price Level}}\\128 \\125 \\122 \\119 \\116\end{array}\begin{array}{c}\underline{\text {C}} \\ \$ 18 \\20 \\22 \\24 \\26\end{array}\begin{array}{c}\underline{\mathrm{I}_{\mathrm{g}} }\\ \$ 2 \\4 \\6 \\8 \\10\end{array}\begin{array}{c}\underline{\text {G }}\\ \$ 3 \\3 \\3 \\3 \\3\end{array}\begin{array}{c}\underline{\text {X }}\\\$ 1 \\2 \\3 \\4 \\5\end{array}\begin{array}{c}\underline{\text {M}} \\ \$ 5 \\4 \\3 \\2 \\1\end{array}\begin{array}{c}\underline{\text {Real GDP}} \\ \\\\\\ \\\\\end{array}\end{array}$
Refer to the table.The real-balances effect of changes in the price level is:

A) shown by columns (1) and (2) of the table.
B) shown by columns (1) and (5) of the table.
C) shown by columns (1) and (4) of the table.
D) not shown by the data in the table.