On January 1, 20x1 Dog Construction Company purchased a grader for $480,000. Dog uses the straight-line method of depreciation and estimates that the grader will have a useful life of five years with no salvage value. In 20x2, Dog's bookkeeper discovered that no depreciation had been taken on this grader in 20x1 due to an error. What amount of depreciation expense should Dog record on the grader for 20x2?

$192,000.$96,000.$72,000.$144,000.