Let $f ( x ) = x ^ { 2 } \sin x$

Multiple Choice

Let $f ( x ) = x ^ { 2 } \sin x$ Then $f ^ { \prime } ( x )$ is

A) $2 x \cos x$
B) $x ( \sin x + \cos x )$
C) $x ( 2 \sin x + x \cos x )$
D) $x ( x \sin x + 2 \cos x )$
E) $x ( 2 \sin x + \cos x )$