Atractor for over-the-road hauling is purchased for $100,000.00. It is expected to be of use to the company for 6 years after which it will be salvaged for $4,000.00. Calculate the depreciation deduction and the unrecovered investment during each year of the tractors life. 16,000.00 a. Use straight-line depreciation Provide depreciation and book value for year 6. Depreciation for year 6 - $ book value for year 6 - 4.000.00 b. Use declining-balance depreciation, with a rate that ensures the book value equals the salvage value. Provide depreciation and book value for year 6. Depreciation for year 6 - $ 2.839.84 book value for year 6 - $ 3.999.85 c. Use double declining balance depreciation. Provide depreciation and book value for year 6. Depreciation for year 6 - $ book value for year 6 - $ d. Use double declining balance, switching to straight-line depreciation Provide depreciation and book value for year 6. Depreciation for year 6 - $ book value for year 6 - $