Kaven Corporation purchased a truck at the beginning of 2018 for $85,000 which will be depreciated using the units-of-output method. The truck is estimated to have a residual value of $5,000 and a useful life of 4 years and 120,000 miles. It was driven 18,000 miles in 2018 and 32,000 miles in 2019. What is the depreciation expense for 2019? (Round any intermediate calculations to the nearest cent and your final answer to the nearest dollar.) OA. $32,000 OB. $21,250 OC. $22,720 OD. $21,440