Find the Requested Composition of Functions $f ( x ) = 5 x + 9$

Multiple Choice

Find the requested composition of functions.
-Given $f ( x ) = 5 x + 9$ and $g ( x ) = 4 x - 1$ , find $( f \circ g ) ( x )$ .

A) $20 x + 4$
B) $20 x + 8$
C) $20 x + 35$
D) $20 x + 14$