what is the answer and why

(1 mark) A function, f(x), has a second derivative f"(x) = (x + 4)(x+ 2) (2 -2)(x-4)2 Name: 2 . 4 Determine the x-values of the points of inflection. - 4 - 2 (a) x = 2 only - x = 2, 4 2 x = -4, -2, 2, 4 - 4 2 x = -4,4 (e) None of the others ( f ) x = -2,2