a. Purchase the machine it is currently renting for $155,000. This machine will require $24,000 per year in ongoing maintenance expenses. $35,000 will be spent upfront training the new operators of the machine. Note: the NPV will be negative, and represents the PV of the costs of the machine in each case. The NPV of renting the machine is $ The NPV of option A is $ The NPV of option B is $ (Round to the nearest dollar. Enter a negative NPV as a negative value.) (Round to the nearest dollar. Enter a negative NPV as a negative value.) Which of the following is the best choice? (Select the best choice below.) A. Rent the current machine. B. Rent the advanced machine. C. Purchase the current machine. D. Purchase the advanced machine