Britney Javelin Company is considering two investments, both of which cost $12,000. The cash flows are as follows: Year 1 2 3 Project A $5,000 5,000 6,000 Project B $4,000 4,000 11,000 REQUIRED: a) Calculate the payback period for project A and project B. (Round the final answers to 2 decimal places.) b) Calculate the NPV for project A and project B. Assume a cost of capital of 8 percent. c) Which of the two projects should be chosen based on the NPV method? d) Should a firm normally have more confidence in answer derived based on NPV method or Payback method? Explain.