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 $g ( x ) = 3 x + 2$ , find $( g \circ f ) ( x )$

A) $- 15 x + 19$
B) $- 15 x + 29$
C) $15 x + 29$
D) $- 15 x - 25$