ABC Prototype, Inc. is considering the purchase of a metal 3D printer. MARR is 12% per year. Using annual worth (AW) analysis, which alternative has higher sensitivity to the Net Annual Revenue (NAR) as shown below? (Note: Revenue (NAR), where NAR = Annual Revenues - Annual Expenses). Change in NAR: -20% 0% +30% Plot the sensitivity of each alternative in Excel for the three changes in NAR. Show computations in Excel, paste an Excel spider chart, and provide an interpretation. Item Capital investment Annual revenue Annual expenses Salvage value Useful life 3D Printer 1 $550,000 $150,000 $75,000 $50,000 5 years 3D Printer 2 $450,000 $130,000 $80,000 $37,000 6 years