Use the functions f(x) = x + 3 and g(x) = 4x - 3 to find the composite function (g ∘ f)^-1. Which of the following represents the composite function (g ∘ f)^-1? A) f(g(x)) - 1 B) (f ∘ g)^-1(x) C) g(f(x)) - 1 D) (g ∘ f)^-1(x)