Use Cramer's Rule to Solve the System $$\begin{array} { r } 4 x + 3 y - z = 31 \\x - 3 y + 2 z = - 5 \\4 x + y + z = 29\end{array}$$

Multiple Choice

Use Cramer's rule to solve the system.
- $$\begin{array} { r } 4 x + 3 y - z = 31 \\x - 3 y + 2 z = - 5 \\4 x + y + z = 29\end{array}$$

A) $\{ ( 4,7,6 ) \}$
B) $\{ ( 7,6,7 ) \}$
C) $\{ ( 4 , - 7 , - 6 ) \}$
D) $\{ ( 5,5,6 ) \}$