Digital divide: In the global digitalization process, the information gap between different countries, regions, industries, companies, and communities due to differences in the degree of ownership of information, network technologies, application levels, and innovation capabilities. According to the above definition, which of the following is the following phenomenon that belongs to the digital divide? ['The reason why Internet TV is popular is that it turns passive reception into active selection.', 'In the modern market economy environment, large enterprises have the ability and capital to build big data systems, and small companies often look to their backs.', 'Production technology in developed countries is a major factor in forming comparative advantage in trade.', 'In the Internet era, the speed of information acquisition in big cities and small cities is almost the same.']