Compute and Simplify the Difference Quotient $\frac { f ( x + h ) - f ( x ) } { h } , h \neq 0$

Multiple Choice

Compute and simplify the difference quotient $\frac { f ( x + h ) - f ( x ) } { h } , h \neq 0$
- $$f ( x ) = \frac { x } { 8 - x }$$

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