26.4-26a The following information is provided by Graham Company Initial investment PV of cash inflows Payback period (years) NPV of project Which project has the highest profitability index? Project A $428,000 $580,000 3.6 $152,000 Project BProject C Project D $212,000 $568,000 $506,000 $388,000 $812,000 $400,000 2.0 $176,000 $244,000 ($106,000) 3.2 O A. Project A O B. Project B O C. Project C OD, Project D