Based on current dividend yields and expected growth rates, the expected rates of return on stocks A and B are 11 % and 14 %, respectively. The beta of stock A is .8, while that of stock B is 1.5. The T-bill rate is currently 6 %, while the expected rate of return on the S & PffSX index is 12 %. The standard deviation of stock A is 10% annually, while that of s tock B is 1 1 %. If you currently hold a passive index portfolio, would you choose to add either of these stocks to your holdings?