X-treme Vitamin Company is considering two investments, boil of which cost $13,000. The cash flows are as follows: a-1. Calculate the payback period for Project A and Project B. (Round your answers to 2 decimal places.) a-2. Which of the two projects should be chosen based on the payback method? Project A Project B b-1. Calculate the net present value for Project A and Project B. Assume a cost of capital of 9 percent. (Do not round intermediate calculations and round your final answers to 2 decimal places.) b-2. Which of the two projects should be chosen based on the net present value method? Project B Project A c. Should a firm normally hove more confidence in the payback method or the net present value method? Net present value method Payback method