4. The amount a household spends in a year depends, in part, on their income. Consider the following data for four households (and be sure to complete the last two columns): Household Income Spending Tax Paid Tax as a % of Income 4 $12,000 $12,000 B $25,000 $23,000 C $50,000 $40,000 D $100,000 $75,000 A. Calculate the amount each household will pay in taxes if a 12% sales tax is applied to all spending. (2 points) B. Calculate the tax as a percent of income that each household will pay in this case. (2 points) C. Based on these four households, is this a progressive tax? Explain. (4 points)