Expand the Following Expression in the Difference Quotient and Simplify $$\frac { f ( x + h ) - f ( x ) } { h } , h \neq 0 . \quad f ( x ) = \frac { 5 } { 2 x }$$

Multiple Choice

Expand the following expression in the difference quotient and simplify. $$\frac { f ( x + h ) - f ( x ) } { h } , h \neq 0 . \quad f ( x ) = \frac { 5 } { 2 x }$$

A) $\frac { 5 } { 2 \left( x ^ { 2 } + h \right) }$
B) $- \frac { 5 } { 2 ( x + h ) ^ { 2 } }$
C) $- \frac { 5 } { 2 x ( x + h ) }$
D) $\frac { 5 } { 2 ( x + h ) }$
E) $- \frac { h } { x ( x + h ) }$