Consider the following information on two stocks.

A portfolio is invested $30\%$ in Stock A and $70\%$ in Stock B$.$ The expected return on the portfolio is

$\%.$ Round$-$off to $1$ decimal place.

$8\mathrm{.}3$

$11\mathrm{.}3$

$12\mathrm{.}1$

$12\mathrm{.}8$

$6\mathrm{.}8$

$7\mathrm{.}5$