I think it would be ( They mainly stayed out of sight, but were in complete control of all matters big and small.) hope this helps.
The correct answer is industrialization.
During the early 20th century, industrialization was growing rapidly in America. This meant more factories, consumer goods, and workers needed to produce goods.
Due to industrialization, many American citizens worked in factories for long hours and under unsafe working conditions. American citizens during this time work as many as 60 hours per week and worked 6 days a week. This result of industrialization caught the attention of the Progressive party members, as they wanted to make working conditions better for the average American citizen.
It comes from Italy if i'm correct
The biggest one was Operation Overlord (D Day)
Making it simpler for people to sell goods
