A machine with a cost of $ 65,000 has an estimated residual value of $ 5,000 and an estimated life of 5 years or 15,000 hours. If it is to be depreciated by the units-of-production method, what is the amount of depreciation for the second full year, during which the machine was used 5,000 hours?

A. $ 8,000 B. $ 20,000

C. $ 12,000 D. $ 21,667