The Table Given Below Shows the Values of Different Components $\text { (Trillions of Dollars) }$

The table given below shows the values of different components of aggregate expenditure of an economy.The marginal propensity to save (MPS) equals _____.
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Table 9.2
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$\text { (Trillions of Dollars) }$
$\begin{array}{llccccccc}\text { Rea } & \text { Net } & \text { Disposab } & \text { Consumpti } & \text { Savin } & \text { Planned } & \text { Governme } & \text { Net } & \text { Planned } \\1 & \text { Taxe } & \text { le } & \text { on } & \text { g } & \text { Investme } & \text { nt } & \text { Export } & \text { Aggregate } \\\mathrm{GD} & \text { s } & \text { Income } & \text { (C) } & \text { (S) } & \text { nt } & \text { Purchases } & \text { s } & \text { Expenditures } \\\mathrm{P} & (\mathrm{NT}) & (\mathrm{Y}-\mathrm{NT}) & & & \text { (I) } & \text { (G) } & (\mathrm{X}- & \mathrm{C}+\mathrm{I}+\mathrm{G}+(\mathrm{X}- \\(\mathrm{Y}) & & & & & & & \text { M) } & \mathrm{M}) \\\hline 5.0 & 1.0 & 4.0 & 3.9 & 0.1 & 1.0 & 1.0 & -0.7 & 5.2 \\5.5 & 1.0 & 4.5 & 4.3 & 0.2 & 1.0 & 1.0 & -0.7 & 5.6 \\6.0 & 1.0 & 5.0 & 4.7 & 0.3 & 1.0 & 1.0 & -0.7 & 6.0 \\6.5 & 1.0 & 5.5 & 5.1 & 0.4 & 1.0 & 1.0 & -0.7 & 6.4 \\7.0 & 1.0 & 6.0 & 5.5 & 0.5 & 1.0 & 1.0 & -0.7 & 6.8\end{array}$

A) 0.80 or 4/5
B) 0.60 or 3/5
C) 0.40 or 2/5
D) 0.10 or 1/10
E) 0.20 or 1/5