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Sala Co. is contemplating the replacement of an old machine with a new one. The following information has been gathered New Machine Old Machine $500,000 Price $250,000 75,000 Accumulated Depreciation 10 years Remaining useful life Useful life 10 years $200,000 $150,500 Annual operating costs f the old machine is replaced, it can be sold for $20,000. The net advantage (disadvantage) of replacing the old machine is Select one: a. $15,000. b. $20,000. c. $(5,000). d. $(50,000)