Your firm has estimated the following cash flows for a capital investment project. The firm's required rate of return is 12%. What is the project's profitability index? Cash Flow -$168,000 at time o 84,000 at year 1 78,400 at year 2 78,400 at year 3 14,000 at year 4 14,000 at year 5 11.200 at year 6 1.28 O 1.03 O 1.19 O 1.42 1.39