For the Given Functions F and G , Find the Indicated

Multiple Choice

For the given functions f and g , find the indicated composition.
- $f ( x ) = \sqrt { x + 8 } , \quad g ( x ) = 8 x - 12$ $( f \circ g ) ( x )$

A) $8 \sqrt { x - 4 }$
B) $2 \sqrt { 2 x - 1 }$
C) $2 \sqrt { 2 x + 1 }$
D) $8 \sqrt { x + 8 } - 12$