Find the Indicated Matrix $\mathrm { A } = \left[ \begin{array} { r r r } 6 & - 5 & 5 \\ - 3 & - 6 & 5 \end{array} \right]$

Multiple Choice

Find the indicated matrix.
-Let $\mathrm { A } = \left[ \begin{array} { r r r } 6 & - 5 & 5 \\ - 3 & - 6 & 5 \end{array} \right]$ and $\mathrm { B } = \left[ \begin{array} { r r r } - 8 & - 1 & 6 \\ - 4 & - 8 & 6 \\ - 9 & - 3 & - 5 \end{array} \right]$ . Find $\mathrm { AB }$

A) $\left[ \begin{array} { r r r } - 48 & 5 & 30 \\ 12 & 48 & 30 \\ 27 & 18 & - 25 \end{array} \right]$
B) $\left[ \begin{array} { r r r } - 73 & 19 & - 19 \\ 3 & 36 & - 79 \end{array} \right]$
C) $\left[ \begin{array} { r r r } 6 & - 5 & 5 \\ - 3 & - 6 & 5 \\ - 8 & - 6 & 5 \\ - 4 & - 8 & 6 \end{array} \right]$
D) $\left[ \begin{array} { r r } - 73 & 3 \\ 19 & 36 \\ - 19 & - 79 \end{array} \right]$ -9 -9 -5