In a CFA study seminar, the following comments were made: Comment 1: "In the short run, an increase in demand in a perfectly competitive industry will result in negative economic profit for some firms in the industry. " Comment 2: "In the long run, a permanent increase in demand in a perfectly competitive industry will result in zero economic profit for the firms in the industry. " Which of the following best describes the accuracy of these commentsComment 1 Comment 2（）①A. Correct Correct ②B. Correct Incorrect ③C. IncorrectCorrect
A. ①
B. ②
C. ③
