Currently, $3-$year Treasury securities yield $5\mathrm{.}6\%,7-$year Treasury securities yield $5\mathrm{.}3\%,$ and $10-$year Treasury securities yield $4\mathrm{.}9\%.$ If the expectations theory is correct, what does the market expect will be the yield on $7-$year Treasury securities three years from today?

$4\mathrm{.}60\%$

$4\mathrm{.}40\%$

$5\mathrm{.}00\%$

$4\mathrm{.}80\%$

$5\mathrm{.}20\%$