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P1020 NPV, with rankings Botany Bay Inc., a maker of casual clothing, is considering four projects. Because of past financial difficulties, the company has a high cost of capital at 1 5 '34: . Project A Project B Project C Project D Initial investment (CFO) S$0,000 -$100,000 - $80,000 -$180,000 Year (t) Cash inows (CE) 1 $20,000 $35,000 $20,000 $100,000 2 20,000 50,000 40,000 30,000 3 20,000 50,000 60,000 60,000 a. Calculate the NPV of each project, using a cost of capital of 15 '36:. b. Rank acceptable projects by NPV. c. Calculate the IRR of each project, and use it to determine the highest cost of cap- ital at which all the projects would be acceptable