More families include two parents that work outside of the home than in the in the 1950s is true about how the family structure has changed in the US since the 1950s.
D) more families include two parents that work outside of the home than in the 1950s.
Step-by-step explanation:
The most crucial things in modern families in America is that the Father and the mother are educated people that want or need to have a job in order to run their families and maintain their status in the society.
The most of the parents they knew to do the labor market, because their education was in the high or middle school level.
Both can have an income that can be applied in education for their children, health services and other responsibility to maintain the family. This can be achieved only the both parents having a job.