Solve the System of Equations Using Cramer's Rule $\begin{aligned} 7 x+9 y-z & =63 \\ x-5 y-4 z & =-33 \\ -8 x+y+z & =-39\end{aligned}$

Multiple Choice

Solve the system of equations using Cramer's rule.
- $\begin{aligned} 7 x+9 y-z & =63 \\ x-5 y-4 z & =-33 \\ -8 x+y+z & =-39\end{aligned}$

A) $(6,3,-6)$
B) $(6,3,6)$
C) $(-6,3,12)$
D) $(6,6,3)$