Study the diagram below. what is one thing about the trench system that fascinates or surprises you? why?

Reform movements focused on labor unions, child labor laws, safety in the workplace, and women’s suffrage.

Explanation:

In the golden age of the United States, there were numerous social changes. The progressive movement changed the election system by that of direct voting, which prevails today. They also promoted economic and social reforms, such as the prohibition of child labor and the vote of women. Salaries were the best, that's why there was a lot of immigration.