Perform the Indicated Operations $A = \left[ \begin{array} { r r r } 3 & - 8 & - 4 \\ - 4 & 6 & 9 \end{array} \right]$

Multiple Choice

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

A) $\left[ \begin{array} { r r r } - 31 & 60 & 16 \\ 4 & - 10 & - 69 \end{array} \right]$

B) $\left[ \begin{array} { r r r } - 1 & - 20 & - 24 \\ - 36 & 50 & 21 \end{array} \right]$

C) $\left[ \begin{array} { r r r } 8 & 7 & 21 \\ 36 & - 49 & - 6 \end{array} \right]$

D) $\left[ \begin{array} { r r r } 1 & 20 & 24 \\ 36 & - 50 & - 21 \end{array} \right]$