A firm must choose from six capital budgeting proposals outlined below. The firm is subject to capital rationing and has an initial budget of - $1,000,000; the firm's WACC is 15 percent. Project IRR NPV Initial Investment $200.000 1 19% $100,000 2 400,000 17 -20,000 3 16 60,000 250,000 200,000 4 12 -5,000 5 150,000 20 50,000 6 400,000 15 150,000 Using the net present value approach to ranking projects, which projects should the firm accept if the projects are mutually exclusive? O a 6 O b. 1,3,5, and 6 O c. 1, 3, 4, 5, and 6 d. 1