31 A change in the estimated useful life of equipment requires 2. b. C. d. a retroactive change in the amount of periodic depreciation recognized in previous years. That no change be made in the period depreciation so that depreciation amounts are comparable over the life of the asset. That the amount of periodic depreciation be changed in the current year and in future years. That income for the current year be increased. 32 Jeff's Copy Shop bought equipmcnl for $24,000 on January 1, 70 Jeff estimated the useful life to be 3 years with no salvage value, and the straight-line method of depreciation will be used. On January 1,2022 Jeff decides that the business will use the equipment for 5 years. What is the revised depreciation expense for 2022 L $8,000. b. $3,200. C. $4,000. d. $6,000