Question

The set of values of p for which the roots of the equation 3x² + 2x + p(p–1) = 0 are of opposite sign is                                             

      (a) (–$\infty$, 0)                                                           (b) (0, 1)

      (c) (1, $\infty$)                                                             (d) (0, $\infty$)