Use Cramerʹs Rule to Solve the System of Equations $$\begin{array} { r } - 2 x - 6 y - z = - 18 \\x - 7 y + 8 z = 59 \\- 4 x + y + z = 1\end{array}$$

Multiple Choice

Use Cramerʹs rule to solve the system of equations. If D = 0, use another method to determine the solution set.
- $$\begin{array} { r } - 2 x - 6 y - z = - 18 \\x - 7 y + 8 z = 59 \\- 4 x + y + z = 1\end{array}$$

A) $\{ ( 2 , - 1 , - 8 ) \}$
B) $\{ ( 1,8,1 ) \}$
C) $\{ ( 2,1,8 ) \}$
D) $\{ ( 3 , - 1,8 ) \}$