Hi$-$Tech Inc. has several outdated computers that cost a total of $$17,800$ and could be sold as scrap for $$4,600.$ They could be updated for an additional $$2,400$ and sold. If Hi$-$Tech updates the computers and sells them, net income will increase by $$9,000.$

At what price were the updated versions sold?

A$)$ $$13,200$

B$)$ $$16,000$

C$)$ $$26,800$

D$)$ $$13,600$