Suppose 1-year T-bills currently yield 7.00% and the future inflation rate is expected to be constant at 3.20% per year. What is the real risk-free rate of return, r*? The cross-product term should be considered, i.e., if averaging is required, use the geometric average. a. 3.87% b. 4.48% c. 3.68% d. 4.06% e. 4.26% Please show me how.