Answer the next question(s) on the basis of the following data: After-tax income Consumption $1000 $ 900 2000 3000 2700 4000 3600 5000 4500 The above data suggest that: Select one: O a. a policy of tax reduction will increase consumption. b. a policy of tax increases will increase consumption. X O c. tax changes will have no impact on consumption. O d. after-tax income should be lowered to increase consumption