The Following Data Regarding Its Common Stock Were Reported by a Corporation

The following data regarding its common stock were reported by a corporation: $\begin{array}{|l|r|}\hline \text { Authorized shares } & 20,000 \\\hline \text { Issued shares } & 15,000 \\\hline \text { Treasury shares } & 3,000 \\\hline\end{array}$ The number of outstanding shares is:

A) 12,000
B) 15,000
C) 17,000
D) 20,000
E) 23,000