Which change occurred in America following the Civil War?

The correct answer reflects a significant transformation in the United States following the Civil War, which took place from 1861 to 1865. After the war, the nation underwent a period of rapid industrialization, particularly in the late 19th century. This era, often referred to as the Second Industrial Revolution, saw the rise of factories, the expansion of the railroad system, and increased production capabilities. The shift from an agrarian economy to one that emphasizes manufacturing and industry was profound, leading to major advancements in technology and infrastructure, as well as changes in labor and demographics.

The growth of cities was closely tied to this industrialization as people moved from rural areas to urban centers in search of jobs, contributing to economic development and the rise of a consumer culture. This transformation had lasting effects on American society, including changes in social structures, labor movements, and the overall economy.

The other options suggest changes that did not align with the post-war reality. For example, agricultural practices were not abandoned; while some farms became more mechanized, agriculture remained a crucial part of the economy. Urbanization actually increased as people sought opportunities in growing cities, contrary to any notion that it declined. Lastly, slavery was abolished with the 13th Amendment in