19. The market model for stock B has been estimated with the following result:

A. 11.11% B. 21.11% C. 31.11% D. 41.11%

20. The market model has been estimated for stocks A and B with the following results:

The covariance between the returns on stocks A and B is A. 0.0384 B. 0.0406 C. 0.1920 D. 0.0050

RBRf=0.01+1.1(RMRf)+eB if M=0.20, and R2=0.50, the standard deviation of the return on stock B is RARf=0.01+0.5(RMRf)+eARBRf=0.02+1.3(RMRf)+eBifM=0.25,(eA)=0.20,and(eB)=0.10