The Drogon Co$.$ just issued a dividend of $$2\mathrm{.}41$ per share on its common stock. The company is expected to maintain a constant $5$ percent growth rate in its dividends indefinitely. If the stock sells for $$45$ a share, what is the company's cost of equity? $11\mathrm{.}15\%$

$10\mathrm{.}62\%$

$10\mathrm{.}09\%$

$10\mathrm{.}36\%$

$5\mathrm{.}73\%$