Estimated cash flows appear below for an investment project. The project's required rate of return (RRR) is 14.30%. What is the discounted payback period for the project in years? Cash flows after Year O are assumed to be end-of-year cash flows. Year O cash flow = -79,000 ag Year 1 cash flow = 18,000 Year 2 cash flow = 27,000 Year 3 cash flow = 27,000 Year 4 cash flow = 37,000 Year 5 cash flow = 21,000 Select one: O a 4.26 b. 3.62 O c. 3.11 O d. 4.01 O e. 3.41 3.84