Wang Qingyun, director of the Basic Industry Department of the National Development and Reform Commission, said that as long as China continues to increase its investment in transportation infrastructure construction in the next few years, by 2015, China is expected to eliminate the constraints on economic and social development caused by insufficient transportation infrastructure and completely Solve the problem of difficult to get a train ticket during the holidays. which of the following can't be inferred from this text? ['China will continue to increase investment in transportation infrastructure construction.', 'Train tickets are tight during our current holidays.', 'Insufficient transportation infrastructure is one of the reasons for the shortage of tickets during the holidays.', "The improvement of China's transportation infrastructure construction will take some time."]