Find the Requested Function Value $( g \circ f ) ( - 28 )$

Multiple Choice

Find the requested function value.
-Find $( g \circ f ) ( - 28 )$ when $f ( x ) = \frac { x - 4 } { 8 }$ and $g ( x ) = 8 x + 8$

A) $- \frac { 55 } { 2 }$
B) $- 24$
C) $- 64$
D) 864