You consider buying a share of APPL stock at a price of $$300$ on June $1$st $2020.$ The stock paid a dividend of $$8\mathrm{.}0$ on Jan $15$th $2021,$ and you sold the stock on Jun $1$st $2021$ for $$400.$ The stock's beta is $1\mathrm{.}2,$ risk$-$free rate r$\_$f is $5\%,$ and E$[$r$\_$m $]=15\%.$ What is the stock's abnormal return $($or called alpha$)?$

$19\%$

$20\%$

$21\%$

$22\%$