Find the Indicated Matrix $\mathrm { A } = \left[ \begin{array} { r r r } 0 & - 3 & 1 \\ 5 & - 1 & 0 \end{array} \right]$

Multiple Choice

Find the indicated matrix.
-Let $\mathrm { A } = \left[ \begin{array} { r r r } 0 & - 3 & 1 \\ 5 & - 1 & 0 \end{array} \right]$ and $\mathrm { B } = \left[ \begin{array} { r r } 1 & 2 \\ 0 & 1 \\ 1 & - 1 \end{array} \right]$ . Find $\mathrm { AB }$ .

A) $\left[ \begin{array} { r r } 1 & 5 \\ - 4 & 9 \end{array} \right]$
B) $\left[ \begin{array} { r r } 0 & 10 \\ 0 & - 1 \\ 0 & 0 \end{array} \right]$
C) $\left[ \begin{array} { r r r } 10 & - 5 & 1 \\ 5 & - 1 & 0 \\ - 5 & - 2 & 0 \end{array} \right]$
D) $\left[ \begin{array} { r r } 1 & - 4 \\ 5 & 9 \end{array} \right]$