Use the Given Row Transformation to Change the Matrix as Indicated

Use the given row transformation to change the matrix as indicated.
- $\left[ \begin{array} { r r r } 6 & 5 & 12 \\ 5 & - 2 & 7 \\ 4 & 2 & 2 \end{array} \right] ; - 6$ times row 3 added to row 1

A)
$\left[ \begin{array} { r r r } 6 & 5 & 1 \\ 5 & - 2 & 7 \\ - 24 & - 12 & - 12 \end{array} \right]$

B)
$\left[ \begin{array} { r r r } - 18 & - 7 & 0 \\ 5 & - 2 & 7 \\ 4 & 2 & 2 \end{array} \right]$

C)
$\left[ \begin{array} { r r r } 6 & 5 & 12 \\ - 19 & - 14 & - 5 \\ - 24 & - 12 & - 12 \end{array} \right]$

D)
$\left[ \begin{array} { r r r } 10 & 7 & 0 \\ 5 & - 2 & 7 \\ 4 & 2 & 2 \end{array} \right]$

Correct Answer:

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