Answer: The use of child labor.
Step-by-step explanation:
Jane Addams, along with Ellen Gates Starr, founded the Hull House on the Near West Side of Chicago on September 18, 1889. Hull House became a powerful settlement house that fought for child labor laws, at both the state level and the federal level. Furthermore, they wanted protective legislation for women, children, and immigrants, as well as women's suffrage, unemployment compensations, and several other reforms that were part of the Progressive ideas at the beginning of the 1900s.