There are two types of risk concerning the stock BCM$.$ The total risk of stock $BCM$ is $50\%$ more than the risk for the stock market as a whole. However, the diversifiable risk of stock BCM is $90\%$ higher than the stock market as a whole, whereas the undiversifiable risk of stock $BCM$ is actually $20\%$ less than the stock market as a whole. Assuming the risk free return is $5\%$ and the expected return on the stock market as a whole is $9\%,$ the expected return on stock $BCM$ should be $q,$

$11\mathrm{.}0\%$

$7\mathrm{.}2\%$

$8\mathrm{.}2\%$

ked

$4\mathrm{.}5\%$