Let $f ( x ) = \frac { \frac { 3 } { x + 4 } - 1 } { 1 + x }$

Multiple Choice

Let $f ( x ) = \frac { \frac { 3 } { x + 4 } - 1 } { 1 + x }$ Which of the following is true for $\lim _ { x \rightarrow - 1 } f ( x )$ ?

A) $- \frac { 1 } { 5 }$
B) $- \frac { 1 } { 3 }$
C) $\frac { 1 } { 5 }$
D) $\frac { 1 } { 3 }$
E) Does not exist