Problem 4. Variable and Absorption Costing Unit Product Costs and Income Statements; Explanation of Difference in Net Operating Income Borunda Corporation has provided the following data for its two most recent years of operation: Required: a. Assume the company uses absorption costing. Prepare an income statement for each year. b. Assume the company uses variable costing. Prepare an income statement for each year. c. Prepare a report in good form reconciling the variable costing and absorption costing net incomes. .