The engineering team at Manuel's Manufacturing, Inc., is planning to purchase an enterprise resource planning (ERP) system. The software and installation from Vendor A costs $380,000 initially and is expected to increase revenue $125,000 per year every year. The software and installation from Vendor B costs $280,000 and is expected to increase revenue $95,000 per year. Manuells uses a 4- year planning horizon and a 10 % per year MARR. Click here to access the TVM Factor Table Calculator Part a What is the discounted payback period of each investment? Vendor A: years Vendor B: years