During the Spring Festival, the railway system added temporary passenger cars between two cities to supplement these lines. The original trains took 12 hours, and the temporary passenger cars took 1 hour more than the original trains. During the implementation period, the passenger congestion of the original trains has not been alleviated. Then the most convincing reason is:. ['The ride time of the temporary bus is too long.', 'Most people like to take a regular bus trip.', 'For a period of time, people did not know the parking stops and operating hours of the new temporary buses.', 'Original train fares are much cheaper than temporary bus fares.']