Equipment with a cost of $160,191 has an estimated residual value of $7,537 and an estimated life of 4 years or 12,748 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 3,260 hours? Oa. 54.00 Ob. $38.163.50 Oc. $39037.66 Od. $46.81