A machine with a cost of $360,000 has an estimated residual value of $10,000 and an estimated life of 5 years or 14,000 hours. It is to be depreciated by the units-of-output method. What is the amount of depreciation for the second full year, during which the machine was used 1,200 hours in the first year and 2,250 hours in the second year? a. $56,250 O b. $70,000 O c. $86,400 O d. $57,000 IN