Solve the Problem $\log ( 12 x ) - \log ( 3 x )$

Multiple Choice

Solve the problem.
-Which of the following is the same as $\log ( 12 x ) - \log ( 3 x )$ for $x > 0$ ?

A) $\log ( 9 x )$
B) $4 \log x$
C) $\frac { \log ( 12 x ) } { \log ( 3 x ) }$
D) $\log ( 4 )$