An investment project costs $18,500 and has annual cash flows of $4,500 for six years. Required: (a) What is the discounted payback period if the discount rate is zero percent? (Click to select) (b) What is the discounted payback period if the discount rate is 3 percent? (Click to select) (c) What is the discounted payback period if the discount rate is 18 percent? (Click to select)