Find the Indicated Derivative $y ^ { \prime \prime \prime }$

Multiple Choice

Find the indicated derivative.
-Find $y ^ { \prime \prime \prime }$ if $y = 6 x \sin x$ .

A) $y ^ { \prime \prime \prime } = - 6 x \cos x - 18 \sin x$
B) $y ^ { \prime \prime \prime } = 12 \cos x - 6 x \sin x$
C) $y ^ { \prime \prime \prime } = - 6 x \cos x + 18 \sin x$
D) $y ^ { \prime \prime \prime } = 6 x \cos x + 18 \sin x$