4. You are a trading associate at a major bank. Your supervisor assigns you with an assignment to hedge against increases in future interest rates the bank's inventory of two-year notes. You have these alternatives: I. Sell the necessary (optimal) amount of 2-year treasury futures, longest delivery date. II. Sell the necessary (optimal) amount of 2-year treasury futures, shortest delivery date. III. Buy necessary (optimal) amount of 2-year treasury futures puts, shortest delivery date. IV. Buy necessary (optimal) amount of 2-year treasury futures puts, shortest delivery date. V. Buy necessary (optimal) amount of 2-year treasury futures calls, shortest delivery date. What do you do? a. Either I. or III. b. Either I., III., or V. C. Either I., II., III., or IV. d. Only V