Find the Indicated Matrix $C = \left[ \begin{array} { r } 4 \\ - 2 \\ 8 \end{array} \right]$

Multiple Choice

Find the indicated matrix.
-Let $C = \left[ \begin{array} { r } 4 \\ - 2 \\ 8 \end{array} \right]$ . Find $\frac { 1 } { 2 } C$

A)
$\left[\begin{array}{r}4 \\-1 \\8\end{array}\right]$
B)
$\left[\begin{array}{r}8 \\-4 \\16\end{array}\right]$
C)
$\left[\begin{array}{r}2 \\-2 \\8\end{array}\right]$
D)
$\left[\begin{array}{r}2 \\-1 \\4\end{array}\right]$