Although the Industrial Revolution reached the United States in the early 1800s, most Americans still lived on farms. Out of a population of over 30 million, only 1.3 million Americans worked in industry when the Civil War began in 1861. After the war, industry rapidly expanded, and millions of Americans left their farms to work in mines and factories. Factories began to replace smaller workshops as complex machinery began to substitute for simpler hand tool.Which is NOT a supporting detail?
A. Originally, most Americans lived on farms, but more and more moved to industry. B. War caused industry to expand. C. Americans also left the farms to work in the mines. D. The United States industrialized. E. Small workshops were replaced with larger factories.