if h(x) = (fog) (x) and h(x)=4(x+1)^2, find f(x) and g(x)

Af(x) = 4x^2

g(x) = (x+1)^2

Bf(x) = 4x^2

g(x) = x+1

Cf(x) = x+1

g(x) = 4x^2

Df(x) = (x+1)^2

g(x) = 4x^2