Rewrite the Logarithm as a Ratio of Natural Logarithms $\ln \frac { x } { 5 }$

Multiple Choice

Rewrite the logarithm as a ratio of natural logarithms.
Log_1/5 x

A) $\ln \frac { x } { 5 }$
B) $\frac { \ln \frac { 1 } { 5 } } { \ln x }$
C) $\frac { \ln x } { \ln \frac { 1 } { 5 } }$
D) $\ln 5 x$
E) None of these