What industry did Andrew Carnegie dominate through his company?

• A. Automobile
• B. Steel
• C. Oil
• D. Railroad

Answer: (B)

Andrew Carnegie dominated the steel industry through his company, Carnegie Steel. Founded in the late 19th century, Carnegie Steel grew to become one of the largest and most profitable steel manufacturers in the United States, playing a crucial role in the industrialization of the country. Carnegie's innovative business practices, such as the implementation of the Bessemer process for steel production and a strong emphasis on efficiency and cost-cutting, allowed his company to produce steel at lower prices than competitors. This success not only revolutionized the steel industry but also contributed significantly to the infrastructure development in the United States, as steel was essential for building railroads, bridges, and skyscrapers. Carnegie's impact on the steel industry cemented his legacy as one of the wealthiest individuals of his time and a key figure in American industrial history.