Let f be a twice-differentiable function. Which of the following statements are individually sufficient to conclude that x = 4 is the location the absolute maximum of f on the interval (0, 10)? 1. f'(4) = 0
II. x = 4 is the only critical point of f on the interval (0,10), and f" (4) <0.
I = 4 is the only critical point of f on the interval (0, 10), and f (10) (A) Il only
(B) Ill only
(C) I and II only
(D) II and III only