A company purchased a machine for $20 million. It has no salvage value and 10 years of useful life. The company uses straight line depreciation. At the end of year 2, the net carrying value of the machine was $16 million and the company sold the machine for $18 million. What was the net gain or loss on the machine? A) $16 million gain. B) $2 million loss. (C) $2 million gain. D) $18 million gain