3. 10 POINTS Assuming rf = .04 be the annual risk-free rate. Suppose that the rate of retun is determined for Omnicom on the basis of a 4 factor model: Factor Annual factor expected return Factor sensitivity Bi Erm -rf .50 1.7 SMB .35 -.20 HML .40 .42 PRIYR .30 .66 find the annual expected return