Consider the function (x + 1) sin x if x * 0, x3+ 2x2+ x f ( x ) = if x = 0. Which of the following statements is true? O f(x) is continuous at x = 0. O f(x) has a (finite) jump discontinuity at x = 0. O f(x) has an infinite discontinuity at x = 0. O f(x) has a removable discontinuity at x = 0. O None of the above