Assume that you are a consultant to Morton Inc., and you have been provided with the following data: $DO=$$$1\mathrm{.}7$;$PO=$$$22$; and $g=4\mathrm{.}4\%($constant$).$ What is the cost of equity from retained earnings based on the DCF approach?

$13\mathrm{.}47\%$

$12\mathrm{.}47\%$

$12\mathrm{.}97\%$

$11\mathrm{.}97\%$

$13\mathrm{.}97\%$