Find the Product AB, If Possible A) $[ 1556 - 18 ]$

Multiple Choice

Find the product AB, if possible.
- $A = \left[ \begin{array} { l l l } - 5 & 2 & 1 \end{array} \right] , B = \left[ \begin{array} { r r r } - 6 & - 8 & 3 \\ - 3 & 7 & - 4 \\ - 9 & 2 & 5 \end{array} \right]$

A) $[ 1556 - 18 ]$
B)
$\left[ \begin{array} { r } 15 \\ 56 \\ - 18 \end{array} \right]$
C)
$$\left[ \begin{array} { r r r } - 5 & 2 & 1 \\- 6 & - 8 & 3 \\- 3 & 7 & - 4 \\- 9 & 2 & 5\end{array} \right] \quadD) \left[ \begin{array} { r r r } 30 & - 16 & 3 \\15 & 14 & - 4 \\45 & 4 & 5\end{array} \right]$$