The correct answer is Restrict power of business owners, while increasing rights of workers.
During the Progressive Era in the US, laborers were fighting for better working conditions and terms on a constant basis. Many laborers had no right to form unions, were forced to work weekends, and did not receive overtime pay.
Millions of workers all over the US were upset with their conditions and organized in order to get them changed. This resulted in the creation of labor laws that established overtime pay, the 5 day work week, and the 40 hour work week. These laws would help restrict what business owners could ask of their employees.