Estimate the Following Limit Numerically, If It Exists $$\lim _ { x \rightarrow 1 } \frac { x - 1 } { x ^ { 2 } + 6 x - 7 }$$

Multiple Choice

Estimate the following limit numerically, if it exists.
$$\lim _ { x \rightarrow 1 } \frac { x - 1 } { x ^ { 2 } + 6 x - 7 }$$

A) $\frac { 1 } { 8 }$
B) 0
C) $- \frac { 1 } { 6 }$
D) $\frac { 1 } { 6 }$
E) The limit does not exist.