In the table at right, the marginal propensity to consume when disposable income changes from $5,000 to $6,000 is OA. 0.8. OB. 0.5. OC. 0.6. OD. 0.75. Real Disposable Income per Year $0 1,000 2,000 3,000 4,000 5,000 6,000 7,000 8,000 9,000 10,000 Planned Real Consumption per Year $1,000 1,800 2,600 3,400 4,200 5,000 5,800 6,600 7,400 8,200 9,000