What technologies, techniques, and organizational strategies helped spur the growth of American industry in the late 19th century?

The mid-nineteenth century has witnessed the growth of economic prosperity and for the same reason called the second industrial revolution.

Explanation:

Changes in industrial development, commerce, and globalization boosted the American economy during the late 19th century. Two ost important factors for the American industrial boom were railways which fostered the communication and electricity which boosted production and connected the world in a single string. The invention of the telegraph in 1844 would also change the country, as news and knowledge would now be exchanged in seconds. As the country recovered in the post-Civil War decades, the electrical network would turn the country much faster than railroads had.

i have to go with a for this one

the answer your looking for is c. : )