Compute the Derivative Function $f ^ { \prime } ( x )$

Multiple Choice

Compute the derivative function $f ^ { \prime } ( x )$ algebraically.
$f ( x ) = \frac { 2 } { x }$

A) $f ^ { \prime } ( x ) = - \frac { 2 } { x ^ { 2 } }$
B) $f ^ { \prime } ( x ) = 0$
C) $f ^ { \prime } ( x ) = \frac { 2 } { x ^ { 2 } }$
D) $f ^ { \prime } ( x ) = 2$
E) $f ^ { \prime } ( x ) = - \frac { 2 } { x }$