Solve the System by the Addition Method $$\left\{ \begin{array} { l } 3 x + y = 14 \\3 x + y = 26\end{array} \right.$$

Multiple Choice

Solve the system by the addition method.
- $$\left\{ \begin{array} { l } 3 x + y = 14 \\3 x + y = 26\end{array} \right.$$

A) $\{ ( x , y ) \mid 3 x + y = 14 \}$
B) $\varnothing$
C) $\{ ( 12,2 ) \}$
D) $\{ ( 8,11 ) \}$