You read in The Wall Streef Journal that 30 -day T-bills are currently yielding 8 percent. Your brother-in-law, a broker at Kyoto Securities, tas given you the fchiowing estimates of current interest rate premiums: Maturity risk premium 2% Default risk premium 2% Based on these data, the real risk-free rate of return is a. 1 percent. b. 4 percent. c. 0 percent. d. 3 percent. e. 2 percent