In front of primary and secondary schools in many big cities, long queues for pick-up and drop-off of children can be seen every morning and evening during peak traffic hours. Some people believe that driving children to and from school is a cause of severe traffic congestion. Which of the following, if true, would most weaken this view? ['Due to the low usage of primary and secondary school buses, a large number of parents choose to drive their children to school.', 'Reduced traffic congestion during early rush hours by 20% during winter and summer vacations, and reduced air pollution.', 'Most of the primary and secondary schools in big cities are located in the core area of the city, and the traffic flow and pedestrian flow themselves are large.', 'After the state introduced the policy of dividing school districts, many children can go to school nearby.']