The eau claire mad cows is a professional hockey team. the regular ticket price for games is $10. however, anyone with a driver's license that shows their address is in la crosse can buy a ticket for $5. this is an example of what kind of price discrimination

Which of the following statements is (are) true? i. free entry to a perfectly competitive industry results in the industry's firms earning zero economic profit in the long run, except for the most efficient producers, who may earn economic rent. ii. in a perfectly competitive market, long-run equilibrium is characterized by lmc < p < latc. iii. if a competitive industry is in long-run equilibrium, a decrease in demand causes firms to earn negative profit because the market price will fall below average total cost.