For each of the projects shown in the following table, calculate the internal rate of return (IRR). Then indicate, for each project, the maximum cost of capital that the firm could have and still find the IRR acceptable.

Project AProject B Project C Project D Initial investment (CF0) 90,000 490,000 20,000 240,000 ear (t Cash Inflows (CFt) 20,000 25,000 30,000 35,000 40,000 150,000 150,000 150,000 150,000 7,500 7,500 7,500 7,500 7,500 120,000 100,000 80,000 60.000