Please ensure that my answers are correct. If not, please solve for the correct answer using Microsoft EXCEL

a. Purchase the machine it is currently renting for $155,000. This machine will require $21,000 per year in ongoing maintenance expenses. will be spent upfront in training the new operators of the machine. Rock Brewery continue to rent, purchase its current machine, or purchase the advanced machine? The NPV (rent the machine) is $ (Round to the nearest dollar.) The NPV (purchase the current machine) is $ The NPV (purchase the advanced machine) is $ Which of the following is the best choice? A. Purchase the advanced machine. B. Rent the current machine. C. Purchase the current machine. (Round to the nearest dollar.) (Round to the nearest dollar.)