Find the Product, AB, If Possible $A = \left[ \begin{array} { l l l } - 6 & 2 & 3 \end{array} \right] , B = \left[ \begin{array} { r } 9 \\ 0 \\ - 3 \end{array} \right]$

Multiple Choice

Find the product, AB, if possible.
- $A = \left[ \begin{array} { l l l } - 6 & 2 & 3 \end{array} \right] , B = \left[ \begin{array} { r } 9 \\ 0 \\ - 3 \end{array} \right]$

A) $[ 156 ]$
B) $A B$ is not defined.
C) $[ - 63 ]$
D) $\left[ \begin{array} { l l l } - 54 & 0 & - 9 \end{array} \right]$