Answer the Question on the Basis of the Information in the Following

Answer the question on the basis of the information in the following table. $\begin{array}{c}\begin{array}{c}\\\text {Money}\\\underline{\text { Supply}}\\ \$ 400 \\400\\400\\400\\400\end{array}\begin{array}{c}\\\text { Money }\\\underline{\text { Demanc }} \\ \$ 600 \\500 \\400 \\300 \\200\end{array}\begin{array}{c}\\\text { Interest}\\\underline{\text { Rate }} \\ 2 \% \\3 \\4 \\5 \\6\end{array}\begin{array}{c}\text {Investment }\\\text {(at Interest}\\\underline{\text { Rate Shown) }}\\\$ 700 \\600 \\500 \\300 \\200\end{array}\end{array}$
Refer to the table.The equilibrium interest rate in this economy is:

A) 3 percent.
B) 4 percent.
C) 5 percent.
D) 6 percent.