Question $6$

If a risky asset has an expected return of $12\%$ and a standard deviation of $20\%,$ you can lend risk$-$free at

$7\%,$ and you can borrow risk$-$free at $9\%,$ what is the standard deviation of a portfolio $($comprised of

these assets$)$ with an expected return of $15\%?$

$60\%$

$80\%$

None of the other answers is correct

$40\%$