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

$5\mathrm{.}37\%$

$4\mathrm{.}77\%$

$5\mathrm{.}17\%$

$5\mathrm{.}57\%$

$4\mathrm{.}97\%$