Horizontally integrated logistics refers to multiple enterprises in the same industry, which use logistics channels to obtain economies of scale and improve logistics efficiency. Horizontally integrated logistics must have an information platform for logistics demand and logistics supply, and a large number of enterprises must participate and exist. A large amount of goods. According to the above definition, Which of the following options are horizontally integrated logistics:. ['A furniture factory requires raw material suppliers and product sellers to use the same logistics company.', 'A slaughtering company in a city puts pigs and beef into refrigerated trucks and sends them to more than 100 retail stores.', 'Hundreds of electronic city stores signed an agreement to designate one of them to handle the electronic city delivery business.', 'A department store set up a logistics center to coordinate the delivery of all types of goods throughout the company.']