Solve the System by Using the Inverse of the Coefficient $$\begin{array} { c } - 3 x - y - 8 z = - 36 \\- 6 x - 7 z = - 34 \\5 y + z = 9\end{array}$$

Multiple Choice

Solve the system by using the inverse of the coefficient matrix.
- $$\begin{array} { c } - 3 x - y - 8 z = - 36 \\- 6 x - 7 z = - 34 \\5 y + z = 9\end{array}$$

A) $\{ ( 1,4,1 ) \}$
B) $\{ ( - 1,1,2 ) \}$
C) $\{ ( 1,1,4 ) \}$
D) $\varnothing$