Solve the System by the Addition Method $$\left\{ \begin{array} { l } \frac { x + 5 } { 3 } = \frac { y + 19 } { 6 } \\\frac { x } { 2 } = \frac { 2 y + 8 } { 4 }\end{array} \right.$$

Solve the system by the addition method. If there is no solution or an infinite number of solutions, so state. Use set
notation to express the solution set.
- $$\left\{ \begin{array} { l } \frac { x + 5 } { 3 } = \frac { y + 19 } { 6 } \\\frac { x } { 2 } = \frac { 2 y + 8 } { 4 }\end{array} \right.$$

A) $\{ ( 1,5 ) \}$
B) no solution; $\varnothing$
C) $\{ ( 5,1 ) \}$
D) infinitely many solutions; $\left\{ ( x , y ) \mid \frac { x + 5 } { 3 } = \frac { y + 19 } { 6 } \right\}$ or $\left\{ ( x , y ) \mid \frac { x } { 2 } = \frac { 2 y + 8 } { 4 } \right\}$