please help with part d/e

4. In a Cournot oligopoly model, the family of power-type (or constant prudence) pricing functions is defined by P(Q) = 1-p ( 1 - Q ' - P ) , p # 1 - log Q, p = 1, where the parameter p E IR is the constant prudence. (a) Plot the pricing function P(Q) for p = -0.5, 0, 1, 1.5. (b) For any p, what is the saturation demand level Q for which the price becomes zero? (c) For what values of p is the choke price P(0) finite, and give its value. (d) A monopolist with per-unit cost of production 0