Find the Derivative Of $f ( x ) = x ^ { 2 } \cos x$

Multiple Choice

Find the derivative of $f ( x ) = x ^ { 2 } \cos x$ .

A) 2x cos x
B) $2 x \cos x - x ^ { 2 } \sin x$
C) $- 2 x \sin x$
D) $2 x \cos x + x ^ { 2 } \sin x$
E) $2 x \sin x$
F) $3 x ^ { 2 } \cos \left( x ^ { 3 } \right)$
G) $- x ^ { 2 } \sin x$
H) None of the above