Covered competition: refers to the phenomenon that the industry's internal competition is already very fierce, and the production and business operators outside the industry are strongly involved in the industry, leading to further competition in the industry. Which of the following are covered by competition? ['A company engaged in the design and development of electronic products enters the field of drone development that has just started.', "In view of the rapid growth in sales performance of each branch company last year, the company's senior management decided to establish several more branches this year after research.", 'After a real estate company opens a large shopping plaza in the center of the city, the passenger flow of the five or six large shopping malls around it has decreased significantly.', 'In order to further meet customer needs, an auto parts seller decides to add a new car repair and maintenance business.']