O they must all be present before a monopolist may practice

O they must all be present before a monopolist may practice price discrimination O they all help explain why a firm\'s short run average total cost curve is U-shaped Question 5 2 pts Compared to a monopoly, the demand curve faced by a perfectly competitive firm is: more elastic at all prices less elastic at al prices perfectly elastic O are perfectly inelastic O also the monopolists\' marginal revenue curves under uniform pricing DQuestion 6 2 pts MacBook Air

Solution

5.

Since the perfectly competitive firm are ready to sell as much as quantity as much demanded at the price determined by the industry.

It means demand curve of perfectly competitive firm is horizontal or perfectly elastic.

On the other hand, the demand curve of monopoly is downward sloping.

Hence option third is the correct answer.

Option third; perfectly elastic.