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 discount rate. (Round percentages to 1 decimal place, e.g. 15.1%.) (1) In Table 3 (future value of 1): Number of Years Involved Discounts per Year Annual Rate Case A 11% 7 Annually Case B 11% 12 Semianually Case C 12% 7 Semiannually (a) (b) Case A 8 % 7 periods Case B 10 % 12 periods Case C 11 % 7 periods