For the Given Functions F and G , Find the Indicated

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

A) $\frac { 7 } { \sqrt { - x + 5 } }$
B) $\sqrt { - \frac { 7 } { x } + 5 }$
C) $- \frac { 1 } { \sqrt { 7 x + 5 } }$
D) $- \frac { 7 } { \sqrt { x + 5 } }$

Correct Answer:

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