Your grandfather has offered you a choice of one of the three following alternatives: $10,000 now; $4,800 a year for eight years; or $56,000 at the end of eight years. Use Appendix B and Appendix D for an approximate answer, but calculate your final answer using the formula and financial calculator methods. a-1. Assuming you could earn 9 percent annually, compute the present value of each alternative: (Do not round intermediate calculations. Round your final answers to 2 decimal places.) Present Value $ 10,000 $ 4,800 S 56,000 a-2. Which alternative should you choose? O $56,000 received at end of eight years O$4,800 received each year for eight years O $10,000 received now b-1. If you could earn 10 percent annually, compute the present value of each alternative: (Do not round intermediate calculations. Round your final answers to 2 decimal places.)