Solve the System by the Addition Method $$\begin{array} { l } - 2.1 x - 3.9 y = 5.1 \\- 2.3 x - 5.8 y = 11.7\end{array}$$

Multiple Choice

Solve the system by the addition method. $$\begin{array} { l } - 2.1 x - 3.9 y = 5.1 \\- 2.3 x - 5.8 y = 11.7\end{array}$$

A) $( 10.8 , - 6.3 )$
B) $( 8.9 , - 6.1 )$
C) $( 1.1 , - 1.9 )$
D) $( 5 , - 4 )$