Kop Corporation's 5-year bonds yield 5.35\%, and T-bonds with the same maturity yield 4.00%. The default risk premium for Kop's bonds is DRP =0.40%, the liquidity premium on Kop's bonds is LP =0.95% versus zero on T-bonds, the inflation premium (IP) is 1.10%, and the maturity risk premium (MRP) on 5 -year bonds is 0.40%. What is the real risk-free rate, r ? a. 2.90% b. 2.10% c. 3.60% d. 2.50% e. 1.55%