Ginnie's Aunt Becca listed the old family mansion with Ginnie. Ginnie put it on the market for Becca, but then she and her cousins talked with Becca and decided they wanted to keep the property in the family. What's the best way to terminate the agreement

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.