Given f(x), find g(x) and h(x) such that f(x)=g(h(x)) and neither g(x) nor h(x) is solely x. f(x)=2x³ - 4x² - 4

a. g(x) = 2x - 4, h(x) = x²
b. g(x) = 2x² - 4, h(x) = x - 4
c. g(x) = 2x - 4, h(x) = x³
d. g(x) = 2x² - 4, h(x) = x² - 4