20. Given the following two stocks A and B Security A B Expected rate of return 0.12 0.14 Beta 1.2 1.8 If the expected market rate of return is 0.09 and the risk-free rate is 0.05, which security would be considered the better buy and why? A. A because it offers an expected excess return of 1.2%. B. B because it offers an expected excess return of 1.8%. C, A because it offers an expected excess return of 2.2%. D. B because it offers an expected return of 14%. E. B because it has a higher beta