Answer: A
Explanation:A. Great Depression was a major event in the 1920s that created a shift in the way countries operate their economic policies. The Great Depression was a severe economic downturn that began in 1929 and lasted until the late 1930s. It was the longest and most severe depression of the 20th century, affecting countries around the world. As a result of the depression, many countries moved away from the laissez-faire economic policies that had been popular in the 1920s and instead adopted more interventionist policies to try to stimulate economic growth.