Kelly Inc's 5-year bonds yield 7.70% and 5-year T-bonds yield 5.75%. The real risk-free rate is r* = 3.20%, the default risk premium for Kelly's bonds is DRP = 0.40%, the liquidity premium on Kelly's bonds is LP = 1.55% versus zero on T-bonds, and the inflation premium (IP) is 1.50%. What is the maturity risk premium (MRP) on all 5-year bonds? a. 1.70% b. 1.55% c. 1.05% d. 1.95% e. 2.80%