Keys Corporation's 5-year bonds yield 6.90% and 5-year T-bonds yield 4.40%. The real risk-free rate is r* = 2.5%, the inflation premium for 5-year bonds is IP = 1.50%, the liquidity premium for Keys' bonds is LP = 0.5% versus zero for T-bonds, and the maturity risk premium for all bonds is found with the formula MRP = (t 1) 0.1%, where t = number of years to maturity. What is the default risk premium (DRP) on Keys' bonds?

a. 1.74%

b. 2.00%

c. 1.56%

d. 1.78%

e. 2.50%