During the 1920s, which factor most contributed to rising prosperity in the United States?

• A. The rise of mass consumerism led to increased production and consumption
• B. The personal savings accumulated during World War I provided the basis for general prosperity
• C. Organized labor established a solid foothold in major manufacturing industries
• D. Government spending helped prevent joblessness throughout the decade

Answer: (A)

The main idea is that prosperity in the 1920s came largely from a growing mass production system fueling a thriving mass consumer economy. As factories perfected efficient manufacturing, prices on many goods—especially cars, appliances, and other household items—fell and became affordable for a larger share of Americans. Wages rose and employment expanded, so more households had income to spend. The combination of more affordable products, new technologies, and widespread advertising created a cycle: higher production drove more jobs and innovation, and increased demand for goods kept production booming. Easy credit and installment buying let people purchase these items even if they didn’t pay the full price upfront, further stimulating consumption and growth.

The other ideas don’t capture what drove widespread prosperity as effectively. Savings from World War I didn’t by itself propel broad economic growth across the decade. Organized labor’s influence was limited in fueling the overall boom, and government spending did not single-handedly prevent joblessness during the era; private-sector expansion and the demand-driven production surge were the driving forces.