Differentiate the Given Function $$f ( x ) = \ln x ^ { 3 }$$

Multiple Choice

Differentiate the given function. $$f ( x ) = \ln x ^ { 3 }$$

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