A firm is considering the following projects. Its opportunity cost of capital is 8%. a-1. What is the payback period on each project? (Do not round intermediate calculations. Round your answers to the nearest whole number.) a-2. What is the discounted payback period on each project? (Do not round intermediate calculations. Round your answers to 2 decimal places. If any of the projects does not pay back on a discounted basis, enter zero ("O").) c. If you use a cutoff period of 3 years with the discounted payback rule, which projects would you accept? d. Which projects have positive NPVs? e. "Payback gives too much weight to cash flows that occur after the cutoff date." True or false