Write the Logarithmic Expression as a Single Logarithm with Coefficient $3 [ \ln x - \ln ( x + 9 ) - \ln ( x - 9 ) ]$

Multiple Choice

Write the logarithmic expression as a single logarithm with coefficient 1, and simplify as much as
possible.
- $3 [ \ln x - \ln ( x + 9 ) - \ln ( x - 9 ) ]$

A) $\left[ \ln \frac { x } { x ^ { 2 } - 81 } \right] ^ { 3 }$
B) $\ln \left[ \frac { x } { x ^ { 2 } - 81 } \right] ^ { 3 }$
C) $\left[ \ln \frac { x } { 2 + x } \right] ^ { 3 }$
D) $\ln \left[ \frac { x } { 2 + x } \right] ^ { 3 }$