Stripe plc purchased a machine on 2 January 20X4 at a cost of 300 000. It is depreciated on the straight-line method with an estimated useful life ten years and no residual value. When preparing the financial statements for the year ending 31 December 20X8, the total estimated useful life was re-estimated to be eight years. The depreciation expense for the year ended 31 December 20X8 is: Select one: O a. 45 000 b. 60 000 c. 22 500 d. 50 000 e. 75 000