How did progressives try to improve business in the United states? A. They set up worker's councils that negotiated with business owners for reform.
B. They organized labor strikes across industries until owners accepted worker demands.
C. They ran for public office and passed laws that regulated business practices.
D. They pooled their money in order to purchase businesses and make changes.

C. They ran for public office and passed laws that regulated business practices.

Explanation:

Progressives were interested in establishing a more transparent and accountable government which would work to improve U.S. society. These reformers favored such policies as civil service reform, food safety laws, and increased political rights for women and U.S. workers.

answer; (d) i believe that the correct answer is americans finally ran out of ammunition;

the answer is a. laws were enacted in the aftermath of the plot to make it harder to free slaves,increasing sectionalism