Which of these is an example of economic transformation that occurred in the early 20th century?

An example of economic transformation in the early 20th century is the rise of industrialization, particularly in the United States and Europe. This period saw a shift from agrarian economies to industrial economies, with significant advancements in technology, manufacturing, and transportation. The introduction of assembly line production, notably by Henry Ford, revolutionized manufacturing processes and increased productivity. Additionally, the growth of urban centers due to job opportunities led to significant demographic shifts and changes in labor dynamics.