Perform the Indicated Matrix Operations $C = \left[ \begin{array} { r } 1 \\ - 3 \\ 2 \end{array} \right]$

Perform the indicated matrix operations.
-Let $C = \left[ \begin{array} { r } 1 \\ - 3 \\ 2 \end{array} \right]$ and $D = \left[ \begin{array} { r } - 1 \\ 3 \\ - 2 \end{array} \right]$ . Find $C - 3 D$

A) $\left[ \begin{array} { c } - 4 \\ 12 \\ - 8 \end{array} \right]$

B) $\left[ \begin{array} { r } 4 \\ - 6 \\ 4 \end{array} \right]$

C) $\left[ \begin{array} { r } - 2 \\ 6 \\ - 4 \end{array} \right]$

D) $\left[ \begin{array} { r } 4 \\ - 12 \\ 8 \end{array} \right]$

Correct Answer:

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