(Advanced Analysis)Answer the Question on the Basis of the Following $\begin{array} { l } I _ { g } = \overline { I _ { g } } = 80 \\\mathrm {~S} = - 80 + 0.4 \mathrm { Y }\end{array}$

Multiple Choice

(Advanced analysis) Answer the question on the basis of the following information for a private closed economy,where I_g is gross investment,S is saving,and Y is gross domestic product (GDP) . $\begin{array} { l } I _ { g } = \overline { I _ { g } } = 80 \\\mathrm {~S} = - 80 + 0.4 \mathrm { Y }\end{array}$ Refer to the information.In equilibrium saving will be:

A) $40.
B) $120.
C) $60.
D) $80.