For the Given Functions F and G , Find the Indicated

Multiple Choice

For the given functions f and g , find the indicated composition.
- $$f ( x ) = 3 x + 10 , \quad g ( x ) = 4 x - 1$$
$( \mathrm { f } \circ \mathrm { g } ) ( \mathrm { x } )$

A) $12 x + 7$
B) $12 x + 39$
C) $12 x + 13$
D) $12 x + 9$