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; people where able to travel across the u.s.a faster than any other mode of transportation,travel time was about a week,from coast to coast

its c not d   tell me if that´s correct