Compute AB, If Possible $A = \left[ \begin{array} { l l l } - 8 & 2 & 4 \end{array} \right]$

Multiple Choice

Compute AB, if possible.
- $A = \left[ \begin{array} { l l l } - 8 & 2 & 4 \end{array} \right]$ and $B = \left[ \begin{array} { r } 5 \\ 0 \\ - 3 \end{array} \right]$

A) $[ - 52 ]$
B) $[ 154 ]$
C) $\left[ \begin{array} { r } - 40 \\ 0 \\ - 12 \end{array} \right]$
D) $\left[ \begin{array} { l l l } - 40 & 0 & - 12 \end{array} \right]$