Find the Derivative Of $f ( x ) = \ln ( x \sin 3 x )$

Multiple Choice

Find the derivative of $f ( x ) = \ln ( x \sin 3 x )$

A) $\frac { 1 } { 3 x } + 3 \tan 3 x$
B) $\frac { 1 } { 3 x } + 3 \cot 3 x$
C) $\frac { 1 } { x } + 3 \tan 3 x$
D) $\frac { 1 } { x } + 3 \cot 3 x$