Children used to work in factories due to child labor. The men would be off fighting in wars and the women would work at factories or stayed at home. With children they didn't have to get paid because of their age and were treated badly. That is why they were chosen to start working in factories.
The correct answer is B) Great Britain, Japan and France all created unequal social structures with distinct wealthy and poor groups. During the Colonial era and in those areas these nations created unequal social structures by creating a gap between and wealthy and the poor classes that was incredibly large. This created problems in the colonies with poorer classes demanding equal rights.
The answer is search and destroy
The rise of the public sphere and public opinion.
The growth of a print culture and literary market - newspapers etc, the multiplier effect.
The rise of coffee houses, clubs, social gatherings. The voice of the street
The breakdown of absolutist politics.