An investment project has annual cash inflows of $3,500, $4,400, $5,600, and $4,800, for the next four years, respectively. The discount rate is 14 percent. a. What is the discounted payback period for these cash flows if the initial cost is $6,200? (Do not round intermediate calculations and round your final answer to 2 decimal places. (e.g., 32.16))Discounted payback period yearsb. What is the discounted payback period for these cash flows if the initial cost is $8,300? (Do not round intermediate calculations and round your final answer to 2 decimal places. (e.g., 32.16))Discounted payback period yearsc. What is the discounted payback period for these cash flows if the initial cost is $11,300? (Do not round intermediate calculations and round your final answer to 2 decimal places. (e.g., 32.16))Discounted payback period years