Question

in both britain and the united states, what happened in the 1870s that limited child labor?
as unions became stronger, they didnt allow children under 14 to work.
laws passed in both countries prohibited children under 14 from working.
laws passed in both countries limited children to work only 8 hours a day.
compulsory education and attendance laws were passed in both countries.

Explanation:

In the 1870s, both Britain and the US passed compulsory education and attendance laws. These laws required children to attend school, directly limiting their availability for work, thus curbing child labor.

Answer:

D. Compulsory education and attendance laws were passed in both countries.