Identify Systems That Do Not Have Exactly One Ordered-Pair Solution $$\begin{array} { l } y = - 5 x - 4 \\- 10 x - 2 y = 8\end{array}$$

Multiple Choice

Identify Systems That Do Not Have Exactly One Ordered-Pair Solution
- $$\begin{array} { l } y = - 5 x - 4 \\- 10 x - 2 y = 8\end{array}$$

A) $\{ ( 0 , - 4 ) \}$
B) $\{ ( 0,0 ) \}$
C) $\{ ( x , y ) \mid 5 x + y = - 4 \}$
D) $\varnothing$