At the end of the accounting period, Nickel Company had $$6,000$ of par walle eommon stock issued, additional paid$-$in capital in excess of par walue $-$ common of $$7,300,$ retained eamings of $$7,000,$ and $$3,500$ of treasury stock The total mount of stockholders' equily is:

$$16,800$

$$23,800.$

$$ $$17,800$

$$9,800$