Using the data worksheet for Requirement $1$ in Cabinet Keeper, what is the gross profit for customer number $11379$ on $5/31/2015?($To find customer $11379$ in Excel, in the Home ribbon, click on Find & Select and choose the option to Find.$)$

A$.$ $$120,960\mathrm{.}00$

B$.$ $$49,011\mathrm{.}20$

C$.$ $$2,493\mathrm{.}33$

D$.$ $$71,948\mathrm{.}80$