Answer:
Choice C
Step-by-step explanation:
(f+g)(x) is a composite function which is obtained by adding the two given functions f(x) and g(x)
(f+g)(x) = f(x) + g(x)
= [tex]3^{x} +10x+4x-2[/tex]
= [tex]3^{x} +14x-2[/tex]
