Respuesta :
Answer:
The use of child labor in factories and other industries was very common.
Explanation:
Answer:
Children working in factories were very common. So A.
Explanation:
"1904, a group of people who were concerned about children working in factories." "They wanted to raise the age at which children could be hired. They also sought to lower the number of hours children were allowed to work, because they wanted children to be able to attend school."