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6. The question below is based on the following information for a society: Disposable income ($ in billion) Consumption ($ in billion) 1,800 1,548 1,900 1,634 2,000 1,720 If disposable income is $2,000 billion, the average propensity to consume is: O a. 0.80. O b. 0.84. O C. 0.86. O d. 0.88 O e. 0.90