Tatsuo Corporation Purchased Farm Equipment on January 1, 2016, for $280,000

Tatsuo Corporation purchased farm equipment on January 1, 2016, for $280,000. In 2016 and 2017, Tatsuo depreciated the asset on a straight-line basis with an estimated useful life of five years and a $90,000 residual value. In 2018, due to changes in technology, Tatsuo revised the residual value to $30,000 but still plans to use the equipment for the full five years. What depreciation would Tatsuo record for the year 2018 on this equipment?

A) $52,000.
B) $58,000.
C) $50,000.
D) $28,000.