Use the Figure Below to Answer the Following Questions

Use the figure below to answer the following questions.
Figure 11.1.1
This figure describes the relationship between consumption expenditure and disposable income for an economy.
-Refer to Figure 11.1.1.The marginal propensity to consume for this economy is

A) 0.5.
B) 0.2.
C) 0.8.
D) 1.
E) 0.6.