Solve the System by the Addition Method $$\left\{ \begin{array} { l } 6 x + 27 y = 27 \\5 x - 9 y = - 9\end{array} \right.$$

Multiple Choice

Solve the system by the addition method.
- $$\left\{ \begin{array} { l } 6 x + 27 y = 27 \\5 x - 9 y = - 9\end{array} \right.$$

A) $\varnothing$
B) $\{ ( x , y ) \mid 5 x - 9 y = - 9 \}$
C) $\{ ( 0,1 ) \}$
D) $\{ ( 1,0 ) \}$