please help me with this questionthank you so much. please help me with this questionthank you so much.

4 . Consider the variant of standard Bertrand's duopoly game in which first firm I chooses a price , hen firm 2 chooses a price . Assume that each firm is restricted to choose a price that is an integral number of cents that each firm's unit cost is constant , equal to c ( an integral number of cents ) , and that the monopoly profit is positive . a . Specify an extensive gamewith perfect information thatmodels this situation b . Give an example of a strategy of firm I and an example of a strategy of firm C . Find the subgame perfect equilibria of the game