Which of the Following Is the Same As $\log ( 12 x ) - \log ( 3 x )$

Multiple Choice

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

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