What was one of the main causes of the Great Depression?

One of the main causes of the Great Depression was the overproduction of consumer goods. During the 1920s, advancements in technology and manufacturing processes led to a surplus of a wide range of products. Factories produced more goods than consumers could buy, which created an imbalance in the economy. Retailers were left with excessive inventory, leading to decreased prices and profits. As businesses struggled to sell their products, they began to cut jobs and wages, further reducing the purchasing power of consumers. This cycle of overproduction and declining consumer spending ultimately contributed significantly to the economic collapse and widespread unemployment that characterized the Great Depression. The other options, such as an increase in immigration, military expenses, and high taxes, were not primary factors contributing to the onset of this economic crisis.