For the Given Functions F and G , Find the Indicated

Multiple Choice

For the given functions f and g , find the indicated composition.
- $$\begin{array} { l } f ( x ) = \frac { 8 } { x + 4 } , \quad g ( x ) = \frac { 6 } { 5 x } \\( f \circ g ) ( x ) \end{array}$$

A) $\frac { 40 x } { 6 - 20 x }$

B) $\frac { 6 x + 24 } { 40 x }$

C) $\frac { 8 x } { 6 + 20 x }$

D) $\frac { 40 x } { 6 + 20 x }$