Given the function:

f(x) = –3x^2 + 4

What is the additive inverse function of f(x)?

A. g(x) = –3x^2 – 4
B. g(x) = –4x^2 – 3
C. g(x) = 3x^2 – 4
D. g(x) = 4x^2 + 3