For the Given Functions F and G , Find the Indicated

Multiple Choice

For the given functions f and g , find the indicated composition.
- $f(x) =-5 x+8, \quad g(x) =6 x+9$
$(f \circ g) (x)$

A) $- 30 x - 39$
B) $- 30 x + 53$
C) $- 30 x + 57$
D) $30 x + 57$