Given the Matrices $A$ And $B$ , Find the Matrix Product $A B$

Multiple Choice

Given the matrices $A$ and $B$ , find the matrix product $A B$ .
- $A=\left[\begin{array}{rrr}1 & 3 & -3 \\ 2 & 0 & 3\end{array}\right], B=\left[\begin{array}{rr}3 & 0 \\ -3 & 1 \\ 0 & 3\end{array}\right]$ Find $A B$ .

A) $\left[\begin{array}{rr}-6 & -6 \\ 6 & 9\end{array}\right]$
B) AB is not defined.
C) $$\left[\begin{array}{rrr}3 & -9 & 0 \\0 & 0 & 9\end{array}\right]$$
D) $\left[\begin{array}{rr}-6 & -6 \\ 9 & 6\end{array}\right]$