Equipment with a cost of $270,000 has an estimated salvage value of $50,000 and an estimated life of 5 years or 12,500 hours. It is to be depreciated by the declining balance method (double). What is the amount of depreciation for the first full year, during which the equipment was used 2,700 hours? Oa. $162,000 O b. $113,400 O c. $112,500 O d. $210,000