Express as a Single Logarithm And, If Possible, Simplify $$\ln \left( 3 x ^ { 2 } - 9 x \right) + \ln \left( \frac { 1 } { 3 x } \right)$$

Multiple Choice

Express as a single logarithm and, if possible, simplify.
- $$\ln \left( 3 x ^ { 2 } - 9 x \right) + \ln \left( \frac { 1 } { 3 x } \right)$$

A) $\ln \left( 3 x ^ { 2 } - 9 x + \frac { 1 } { 3 x } \right)$
B) $\ln ( x - 3 )$
C) $\ln ( x - 9 )$
D) $\ln \left( 9 x ^ { 2 } ( x - 3 ) \right)$