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The manager of a canned-food processing plant has three mutually exclusive labeling machine options. On the basis of an internal rate of return analysis with a MARR of 9% per year, determine which model is the best. Model A B Initial investment, $ -275,000 -380,000 - 420,000 Annual revenue, $ per year 30,000 32,500 45,000 Life, years 00 00