Find $\lim _ { x \rightarrow - \infty } \left[ \frac { x } { ( 5 + x ) ^ { 2 } } + 7 \right]$

Multiple Choice

Find $\lim _ { x \rightarrow - \infty } \left[ \frac { x } { ( 5 + x ) ^ { 2 } } + 7 \right]$ (if it exists) .

A) $\frac { 8 } { 25 }$
B) $- 7$
C) 7
D) $\infty$
E) limit does not exist