Humphrey Contractors purchased customized equipment in January, 2017 for $580,000. The manufacturer warranted the equipment for six years. Humphrey used double-declining balance depreciation with a useful life of eight years and no salvage value. After two full years, he now believes that the equipment will only last a total of five years Compute his depreciation expense for 2019 if he switches to straight-line depreciation (Round any intermediate calculations to the nearest cent and your final answer to the nearest dollar) O A. $87,000 OB. $108,750 OC. $116,000 OD. $72,500