A firm is considering investment in a capital project which is described below. The firm's cost of capital is 18 percent and the risk-free rate is 6 percent. The project has a risk index of 1.5. The firm uses the following equation to determine the risk adjusted discount rate, RADR, for each project: RADR Rf + Risk Index (Cost of capital - Rf) Initial Investment $1,000,000 Cash Inflow Year 1 $500,000 2 $500,000 3 $500,000 The net present value without adjusting the discount rate for risk is Oa. $179,436 O b. $250,000 Oc. $500,000 O d. $87,136