Use the Matrix Capabilities of a Graphing Utility to Find

Multiple Choice

Use the matrix capabilities of a graphing utility to find AB, if possible. $$A = \left[ \begin{array} { c c } 4 & - 5 \\- 4 & 2 \\- 3 & - 9 \\- 5 & 8\end{array} \right] , B = \left[ \begin{array} { c c c c } - 1 & - 9 & 8 & - 7 \\- 9 & - 1 & - 1 & 9\end{array} \right]$$

A) $\left[ \begin{array} { c } 41 \\34 \\- 32 \\107\end{array} \right]$
B) $\left[ \begin{array} { c c c c } 41 & - 31 & 37 & - 73 \\- 14 & 34 & - 34 & 46 \\84 & 36 & - 15 & - 60 \\- 67 & 37 & - 48 & 107\end{array} \right]$
C) $\left[ \begin{array} { c c c c } - 49 & - 41 & 27 & 17 \\22 & 38 & - 30 & 10 \\- 78 & 18 & - 33 & 102 \\77 & 53 & - 32 & - 37\end{array} \right]$
D) not possible
E) $\left[ \begin{array} { c c c c } 41 & - 14 & 84 & - 67 \\- 31 & 34 & 36 & 37 \\37 & - 34 & - 15 & - 48 \\- 73 & 46 & - 60 & 107\end{array} \right]$