A company is considering four mutually exclusive projects A,B,C, and D. Project A requires an initial investment of $100,000 and is expected to generate after-tax cash flows of $62,500 per year for two years. Project B requires an initial investment of $160,000 and is expected to generate after-tax cash flows of $72,000 per year for three years. Project C requires an initial investment of $125,000 and is expected to generate $45,000 per year for four years. Project D requires an initial investment of $200,000 and is expected to generate after-tax cash flows of $87,500 per year for three years. The appropriate discount rate is 10%. Rank the projects by their Profitability Index (PI) in descending order (i.e. from highest PI to lowest). C,B,D,AA,B,C,DD,A,B,CB,C,A,D