On June 1, 2019, Irene places in service a new automobile that cost $21,000. The car is used 70% for business and 30% for personal use. (Assume this percentage is maintained for the life of the car.) She does not take additional first-year depreciation. Determine the cost recovery deduction for 2020. a.$4,704 b.$3,570 c.$10,100 d.$3,290