$$\text { What is the domain of the function } f ( x ) = 6 \ln ( 4 x ) ?$$

Multiple Choice

$$\text { What is the domain of the function } f ( x ) = 6 \ln ( 4 x ) ?$$

A) $( 0 , \infty )$
B) $\left( \frac { 1 } { 4 } \infty \right)$
C) $( 0,1 )$
D) $( 1 , e )$
E) $( e , \infty )$