Jennifer Silva Argues That Becoming Adults Is Significantly Harder for Working

Jennifer Silva argues that becoming adults is significantly harder for working class youth today than it was in the past. What social change is most responsible for this?

A) High school curriculum requirements have grown, making it harder to graduate from high school.
B) State regulations on driver's education have become more strict, so it is harder to get a driver's license.
C) The decline of manufacturing jobs and the growth of the service industry make it harder to get a secure full-time job with benefits.
D) The military has become more selective in its recruiting, narrowing a popular avenue to upward mobility for many working-class youth.