Solve the System, If Possible, by Using Cramer's Rule $$\begin{array} { l } - 6 x - 3 y = 2 \\- 12 x + 15 y = - 6\end{array}$$

Multiple Choice

Solve the system, if possible, by using Cramer's rule. If Cramer's rule does not apply, solve the system by
using another method.
- $$\begin{array} { l } - 6 x - 3 y = 2 \\- 12 x + 15 y = - 6\end{array}$$

A) { }
B) $\left\{ \left( - \frac { 2 } { 21 } , - \frac { 10 } { 21 } \right) \right\}$
C) $\left\{ \left( \frac { 2 } { 21 } , \frac { 10 } { 21 } \right) \right\}$
D) $\left\{ \left( - \frac { 1 } { 3 } - \frac { 1 } { 2 } y , y \right) \mid y \right.$ is any real number $\}$