Final answer:
The worrying number of teenagers mentioned in the question are most likely exhibiting rebellious behaviors as a response to the falling popularity of the government among voters.
Step-by-step explanation:
The worrying number of teenagers mentioned in the question are most likely exhibiting rebellious behaviors.
As stated in the information provided, younger Americans are often reluctant to become involved in traditional forms of political activity, and they may feel that their votes do not matter or that politicians are not interested in what they have to say. This disengagement from politics can manifest in rebellious behaviors as a way for teenagers to express their dissatisfaction with the government and politics.
An increase in rebellious behaviors among teenagers may be a response to the government's falling popularity among voters.