If Possible, Find AB $$A = \left[ \begin{array} { c c } - 5 & 1 \\7 & 5 \\8 & 8\end{array} \right] , B = \left[ \begin{array} { c } - 4 \\8\end{array} \right]$$

Multiple Choice

If possible, find AB. $$A = \left[ \begin{array} { c c } - 5 & 1 \\7 & 5 \\8 & 8\end{array} \right] , B = \left[ \begin{array} { c } - 4 \\8\end{array} \right]$$

A) $\left[ \begin{array} { c } 12 \\- 68 \\- 96\end{array} \right]$
B) $\left[ \begin{array} { l } 28 \\12 \\32\end{array} \right]$
C) $\left[ \begin{array} { c c } 20 & 8 \\- 28 & 40 \\- 32 & 64\end{array} \right]$
D) $\left[ \begin{array} { l l l } 12 & - 68 & - 96\end{array} \right]$
E) not possible