Refer to the Tables of Information for a Private Closed

$$\begin{array}{l}\begin{array} { | c | c | } \hline \text { Gross Domestic Product } & \text { Consumption } \\\hline \$ 100 & \$ 100 \\\hline 200 & 160 \\\hline 300 & 220 \\\hline 400 & 280 \\\hline 500 & 340 \\\hline 600 & 440 \\\hline\end{array}\\\\\begin{array} { | c | c | } \hline \text { Expected Rate of Return } & \text { Amount of Investment } \\\hline 15 \% & \$ 0 \\\hline 12 & 40 \\\hline 9 & 80 \\\hline 6 & 120 \\\hline 3 & 160 \\\hline 0 & 200 \\\hline\end{array}\end{array}$$ Refer to the tables of information for a private closed economy. The multiplier in this economy is

A) 4.
B) 5.
C) 2.5.
D) 3.5.