Im not to sure but I think the answer may be C, sorry if im wrong
Answer:
Economic growth and increased urbanization.
Explanation:
Industrialization was the major force that changed American society in the Gilded Age. With the construction of the Transcontinental road, the demand for manufacturing increased and, along the trails, towns developed where people could live and build their own businesses.It was during this period that large companies came to life, such as Standart Oil Company, Vanderbilt, Carnegie Steel Company and others. Also, transportation gained a major boost that increased the production of crops and cattle, it was easier to plant in the country and easier to transport everything to ports.
Hope this helps
I cant tell u on the site i posted the answer on answers.com
