im stuck, please help

Suppose the real risk-free rate is 3.00%, the average expected future inflation rate is 5.90%, and a maturity risk premium of 0.10% per year to maturity applies, i.e., MRP = 0.10% ( t), where t is the number of years to maturity. What rate of return would you expect on a 1-year Treasury security, assuming the pure expectations theory is NOT valid? Disregard cross-product terms, i.e., if averaging is required, use the arithmetic average. a. 9.18% b. 8.90% c. 3.00% Od. 9.00% e. 3.28%