Use the Given Row Transformation to Change the Matrix as Indicated

Multiple Choice

Use the given row transformation to change the matrix as indicated.
- $\left[ \begin{array} { r r r } 3 & 5 & 12 \\ 3 & 4 & 2 \\ 6 & - 4 & 5 \end{array} \right] ; - 2$ times row 2 added to row 3

A)
$$\left[ \begin{array} { r r r } - 3 & - 3 & 8 \\3 & 4 & 2 \\6 & - 4 & 5\end{array} \right]$$

B)
$$\left[ \begin{array} { r r r } 3 & 5 & 12 \\3 & 4 & 2 \\0 & - 8 & 3\end{array} \right]$$

C)
$\left[ \begin{array} { r r r } 3 & 5 & 12 \\ 3 & 4 & 2 \\ 0 & - 12 & 1 \end{array} \right]$


D)
$$\left[ \begin{array} { r r r } 3 & 5 & 12 \\3 & 4 & 2 \\12 & 4 & 9\end{array} \right]$$