Given And $c = - 6$ , Determine $C A B ^ { 2 }$

Given:
$A = \left[ \begin{array} { r r r } - 7 & - 4 & 2 \\ 4 & - 5 & - 8 \end{array} \right] , B = \left[ \begin{array} { r r r } - 4 & 1 & - 7 \\ 8 & - 8 & 3 \end{array} \right]$ and $c = - 6$ , determine $C A B ^ { 2 }$ .

A) $\left[ \begin{array} { r r } 108 & 1998 \\ 4116 & 816 \end{array} \right]$
B) $\left[ \begin{array} { r r r } - 4704 & - 96 & - 1176 \\ - 6144 & - 9600 & - 3456 \end{array} \right]$
C) $\left[ \begin{array} { r r r } 672 & 24 & - 588 \\ - 1536 & 1920 & 432 \end{array} \right]$
D) $\left[ \begin{array} { r r r } - 864 & - 1494 & 1842 \\ 2304 & 1944 & 1446 \\ 2880 & 3060 & - 156 \end{array} \right]$
E) not possible