The Following Data Were Reported by a Corporation $\begin{array} { l } \text {Authorized shares } &20,000\\ \text {Issued shares } &15,000\\ \text {Treasury shares } &3,000\\\end{array}$

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

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