Transcript text: Perform the following operation, if possible.
\[
\left[\begin{array}{rr}
8 & -5 \\
-9 & 7 \\
0 & 0
\end{array}\right]-\left[\begin{array}{rr}
1 & 1 \\
-6 & -8 \\
-1 & -9
\end{array}\right]
\]
Select the correct choice below and, if necessary, fill in the answer box to complete your choice.
A. $\left[\begin{array}{rr}8 & -5 \\ -9 & 7 \\ 0 & 0\end{array}\right]-\left[\begin{array}{rr}1 & 1 \\ -6 & -8 \\ -1 & -9\end{array}\right]=\left[\begin{array}{ll}\square & \square \\ \square & \square \\ \square & \square\end{array}\right]$
(Type an integer or a fraction.)
B. Matrices cannot be subtracted.