If the System Has Infinitely Many Solutions, Write the Solution

Multiple Choice

If the system has infinitely many solutions, write the solution set with x arbitrary.
- $$\begin{array} { l } \frac { 8 } { x } + \frac { 1 } { y } = \frac { 17 } { 9 } \\\frac { 4 } { x } - \frac { 1 } { y } = \frac { 10 } { 9 }\end{array}$$

A) $\{ ( 4 , - 9 ) \}$

B) $\{ ( - 4,9 ) \}$

C) $\{ ( - 9,4 ) \}$

D) $\{ ( 4,8 ) \}$