If the System Has Infinitely Many Solutions, Write the Solution $$\begin{array} { l } x - 4 y = 10 \\- 3 x + 12 y = - 30\end{array}$$

Multiple Choice

If the system has infinitely many solutions, write the solution set with x arbitrary.
- $$\begin{array} { l } x - 4 y = 10 \\- 3 x + 12 y = - 30\end{array}$$

A) $\varnothing$

B) $\left\{ \left\{ x , \frac { x } { 12 } - \frac { 5 } { 2 } \right) \right\}$

C) $\left\{ \left\{ x , \frac { 5 } { 2 } - \frac { x } { 4 } \right) \right\}$

D) $\left\{ \left\{ x , \frac { x } { 4 } - \frac { 5 } { 2 } \right) \right\}$