TV channels are no longer scarce for people. The increasing number of TV channels has given viewers more choices. The audience's attention choice has become a scarce resource chased by TV media. Which of the following topics is most likely caused by this passage? ? ['It is not wise to adopt market-oriented operation of highways.', 'The healthy development of the economy needs to change the status of high tolls on highways.', 'The use of market-based highway investment management systems has outweighed the benefits.', "Highway market operation is a necessary condition for improving China's transportation."]