Let [tex]$A=\left[\begin{array}{rr}-5 & 1 \\ 4 & 0\end{array}\right]$[/tex] and [tex]$B=\left[\begin{array}{rr}-1 & -2 \\ 6 & 6\end{array}\right]$[/tex].
Find [tex][tex]$B-A$[/tex][/tex], if possible.
Select the correct choice below and, if necessary, fill in the answer box to complete your choice:
A. [tex]$B - A =$ \begin{bmatrix} \square & \square \\ \square & \square \end{bmatrix}[/tex]
(Type an integer or simplified fraction for each matrix element.)
B. [tex]$B-A$[/tex] is undefined.