Solve the Problem $g ( x ) = x + 6$

Multiple Choice

Solve the problem.
-Let $g ( x ) = x + 6$ . Find a function $y = f ( x )$ so that $( f \circ g ) ( x ) = 4 x + 24$

A) $f ( x ) = 4 x$
B) $f ( x ) = 4 x + 6$
C) $f ( x ) = 4 x - 6$
D) $f ( x ) = 4 ( x + 1 )$