Let $f ( x ) = \frac { x ^ { 3 } - 2 x ^ { 2 } } { x }$

Multiple Choice

Let $f ( x ) = \frac { x ^ { 3 } - 2 x ^ { 2 } } { x }$ Then $f ^ { \prime } ( x ) = 0$ if x is

A) -2
B) -1
C) 0
D) 1
E) 2