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

Multiple Choice

Find the indicated matrix.
-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)
$\left[\begin{array}{r}-4 \\12 \\4\end{array}\right]$
B)
$\left[\begin{array}{r}-2 \\6 \\-4\end{array}\right]$


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

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