Problem 15-58 (LO 15-6) In each of the following independent cases for tax year 2020, determine the amount of business interest expense deduction and disallowed interest expense carryforward, If any. Required: a. Company A has ATI of $70,000 and business Interest expense of $20,000 b. Company B has ATI of $90,000, business interest expense of $50,000, and business interest income of $2,000. c. Company C has taxable income of $50,000 which includes business interest expense of $90,000 and depreciation of $20,000, (For all requirements, leave no cells blank - be certain to enter "0" wherever required.) Answer is complete but not entirely correct. Interest expense Disallowed interest deduction expense carryforward Company A S 20,000 $ 0 Company B 35,000 $ 6,000 Company C $ 60,000 $ 42,000 a. b. IS