For the Given Functions F and G , Find the Indicated

Multiple Choice

For the given functions f and g , find the indicated composition.
- $$f ( x ) = \frac { 1 } { x - 7 } , \quad g ( x ) = \frac { 5 } { 6 x }$$
$( f g ) ( x )$

A) $\frac { 5 x - 35 } { 6 x }$
B) $\frac { 1 x } { 5 - 42 x }$
C) $\frac { 6 x } { 5 + 42 x }$
D) $\frac { 6 x } { 5 - 42 x }$