You invest $40\%$ of your wealth in risky asset A and $60\%$ in the risk$-$free asset. $E(r_A)$ is $10\%$ and ${}_A$ is $16\%,$ while the risk$-$free rate is $3\%.$ The expected return on your portfolio is while the standard deviation is

Multiple Choice

$5\mathrm{.}80\%$;$9\mathrm{.}60\%$

$4\mathrm{.}00\%$;$6\mathrm{.}40\%$

$5\mathrm{.}80\%$;$6\mathrm{.}40\%$

$7\mathrm{.}20\%$;$9\mathrm{.}60\%$