Select the correct answer. The function f(x) = (3x - 2)^(3/5) is non-differentiable at 'x = 2/3. Why? O A. It has a vertical tangent line at 'x = 2/3". O B. It has a corner at x = 2/3. O C. It has a jump discontinuity at x = 2/3. O D. It has a vertical asymptote at 'x = 2/3