Solve the Pair of Linear Equations by Addition $\begin{array} { c } 2 x + 3 y = - 6 \\2 x - y = 18\end{array}$

Multiple Choice

Solve the pair of linear equations by addition. $\begin{array} { c } 2 x + 3 y = - 6 \\2 x - y = 18\end{array}$ If there is one common solution, select the correct ordered pair of the point of intersection. If there is no one common solution, select either parallel or coincide for the correct answer.

A) $( 6 , - 4 )$
B) $( 6 , - 6 )$
C) $( 5,6 )$
D) The lines are parallel.
E) The lines coincide.