a$.$ The expected rate of return for portfolio $A$ is $\%.($Round to two decimal places.$)$

The standard deviation of portfolio $A$ is $\%.($Round to two decimal places.$)$

b$.$ The expected rate of return for portfolio B is $\%.($Round to two decimal places.$)$

The standard deviation for portfolio B is $\%.($Round to two decimal places.$)$

c$.$ Based on the risk $($as measured by the standard deviation$)$ and return as measured by the

expected rate of return of each stock, which investment is better? $($Select the bext

choice below.$)$

A$.$ Portfolio $A$ is better because it has a higher expected rate of return with more risk.

B$.$ Portfolio $B$ is better because it has a lower expected rate of return with less risk.

C$.$ Based on risk alone, portfolio $B$ is better because it has lower risk; and based on

return alone, portfolio $A$ is better because it has a higher return.