E & P Global is reviewing a project that has an initial cost of $18,000. The project will produce cash inflows, starting with year 1, of $4,500, $5,600, $7,800, and finally in year 4, $5,900. What is the profitability index if the discount rate is 12 percent? a. 1.01 b. .99 c. 1.12 d. 1.08 e. 1.06