The graph of function y = f (x) defined on [-4, 4] is below: YA I. The function is decreasing on (-1, 1). Il. The function has two local maximum. Ill. The function is an even function. IV. The average rate of change of f (x) from x = 1 to x = 2 is larger than a = -2 to @ = -1 Which of the above is/are correct? O II, III and IV only O Il only O IV only O ll and IV only O I and Ill only