An investment project costs $15 100 and has annual cash flows of $3,900 for 6 years. a. What is the discounted payback period if the discount rate is 0 percent? (Enter O if the project never pays back on a discounted payback basis. Do not round intermediate calculations and round your answer to 2 decimal places, e.g. 32.16.) b. What is the discounted payback period if the discount rate is 10 percent? (Enter O if the project never pays back on a discounted payback basis. Do not round intermediate calculations and round your answer to 2 decimal places, e.g., 32.16.) c. What is the discounted payback period if the discount rate is 17 percent? (Enter O if the project never pays back on a discounted payback basis. Do not round intermediate calculations and round your answer to 2 decimal places, e.g., 32.16.) es years a. Discounted payback period b. Discounted payback period C. Discounted payback period years years