-2 -1 0 1 2 g (x) -4 -1 4 11 20 The table above gives values of a function g at selected values of a. Which of the following statements, if true, would be individually sufficient to conclude that there exists a number c in the interval [-2, 2] such that g (c) = 6 ? I. g is defined for all ac in the interval [-2, 2]. Il. g is increasing on the interval [-2, 2]. Ill. g is continuous on the interval [-2, 2]. A Il only B Ill only C I and Ill only D I, II, and Ill