You may use your calculator for this question. Which of the following functions is continuous but not differentiable at x = 1? x, xs1 x, xs1 I. y=Vx-1 II. y= III. y= 1 (2x, x>1 x>1 X O A. I only O B. II only O C. I and Ill only O D. II and Ill only O E. All of these functions are continuous but not differentiable at x = 1