Question 8 (1 point) Saved () Listen Look at the following securities. Which pair of securities would a rational investor choose? Security A with an expected return of 10% and a beta of 1.3 Security B with an expected return of 11% and a beta of 1.3 Security C with an expected return of 10% and a beta of 0.9 Security D with an expected return of 10% and a beta of 0.7 a) Security A and Security D b) Security B and Security C O c) Security A and Security C O d) Security B and Security D