For each of the following fixed assets, determine the depreciation expense as of December 31 for Year 3: Disposal date is N/A if asset is still in use. Method: SL = straight-line; DDB = double-declining-balance Assume the estimated life is five years for each asset. Item Cost Residual Value Disposal Date Depreciation Method Depreciation Expense Year 3 A $40,000 N/A Purchase Date July 1, Year 3 Jan. 1, Year 1 Oct. 1, Year 3 B $4,000 5,000 2,000 50,000 Aug. 31, Year 3 N/A C 60,000 80,000 10,000 Jan. 1, Year 2 Apr. 1, Year 3 DDB