Answer:
(D) 3
Step-by-step explanation:
A function f(x) has a relative minimum and maximum when its derivative f'(x) is equal to zero. Given f'(x) = x^2*(x + 1)^3*(x – 4)^3, f'(x) = 0 at x = 0, x = -1 and x = 4. Therefore, the total number of relative maximum and minimum points of f(x) is 3.