Perform the Indicated Operations and Simplify the Result $\frac { 1 - \frac { 8 } { x } } { 1 + \frac { 8 } { x } }$

Multiple Choice

Perform the indicated operations and simplify the result. Leave the answer in factored form.
- $\frac { 1 - \frac { 8 } { x } } { 1 + \frac { 8 } { x } }$

A) $x + 8$
B) $\frac { x - 8 } { x + 8 }$
C) $\frac { x + 8 } { x - 8 }$
D) $x - 8$