For each of the following cases, indicate (a) what interest rate columns and (b) what number of periods you would refer to in looking up the present value factor. (1) In Table 3 (present value of 1): Number of Annual Rate Years Involved Case A 9% 6 Case B 12% 8 Case C 8% 9 Case A Case B Case C Discounts per Year Annually Semiannually Semiannually (a) (b) % periods 96 periods 96 periods (2) In Table 4 (present value of an annuity of 1): Number of Annual Rate Years Involved Number of Payments Involved Frequency of Payments Case A 8% 17 17 Annually Case B 12% 8 8 Annually Case C 6% 4 8 Semiannually (a) Case A % (b) periods Case B 96 periods Case C % periods