Firm E must choose between two business opportunities. Opportunity 1 will generate an $8,000 deductible loss in year 0, $5,000 taxable income in year 1, and $20,000 taxable income in year 2. Opportunity 2 will generate $6,000 taxable income in year O and $5,000 taxable income in years 1 and 2. The income and loss reflect before-tax cash inflow and outflow. Firm E uses a 5 percent discount rate and has a 40 percent marginal tax rate over the three-year period. Use Appendix A and Appendix B. Required: a1. Complete the tables below to calculate NPV. a2. Which opportunity should Firm E choose? b1. Complete the tables below to calculate NPV. Assume Firm E's marginal tax rate over the three-year period is 15 percent. b2. Which opportunity should Firm E choose? c1. Complete the tables below to calculate NPV. Assume Firm E's marginal tax rate is 40 percent in year 0 but only 15 percent in years 1 and 2. c2. Which opportunity should Firm E choose?