Gates Co. purchased machinery on January 2, 2005, for $440,000. The straight-line method is used and useful life is estimated to be 10 years, with a $40,000 salvage value. At the beginning of 2011 Gates spent $96,000 to overhaul the machinery. After the overhaul, Gates estimated that the useful life would be extended 4 years (14 years total), and the salvage value would be $20,000. The depreciation expense for 2011 should be
a) $40,000
b) $34,500.
c) $37,000.
d) $28,250.