15. Suppose the real risk-free rate is 2.50% and the future rate of inflation is expected to be 2.95% next year, 3.05% the following year, and 3.15% the year after that. What rate of return would you expect on a 3-year Treasury security? 5.15% 5.25% 5.35% 5.45% 5.55% a b. c. d. c