Answer
(a) Straight line method of depreciation divides the depreciable cost in useful line of the assets.
(b) Declining Balance method
(c) Units-of-activity
Work Step by Step
(a) Every year the depreciation expense will remain at the same amount
(b) The pattern of depreciation in case of declining balance will be reduction in depreciation expense every year.
(c) The pattern of depreciation will depend on the actual activity of the asset and the depreciation expense will vary every year.