Equipment with a cost of $192,000 has an estimated salvage value of $18,000 and an estimated life of 4 years or 12,000 hours. It is to be depreciated by the straight-line method. What is the amount of depreciation for the first full year, during which the equipment was used 3,300 hours?a. $48,000b. $52,500c. $49,500d. $43,500