Equipment with a cost of $77,974.00, an estimated residual value of $5,885.00, and an estimated life of 13 years was depreciated by the straight-line method for 6 years. Due to obsolescence, it was determined that the remaining useful life should be shortened by 4 years and the residual value changed to zero. The depreciation expense for the current and future years is Select the correct answer. O $4,470.22 O$33,271.85 O $3,438.63 O $14,900.72