Question

what did the following contribute to the creation of during the 1920s?

• advertising
• installment plans
• easier access to electricity led to invention of more household appliances
• the growth of labor unions
• a narrowing of the income gap
• development of a consumer culture
• an economic recession

Explanation:

• Advertising promoted products, installment plans allowed buying on credit, and new household appliances (from easier electricity access) encouraged spending. These factors together fostered a culture where people actively consumed goods, matching "Development of a consumer culture."
• Labor unions’ growth relates to worker organizing, not these factors. Income gap didn’t narrow (in fact, widened in some ways). Economic recession (Great Depression) was later, not 1920s consumer boom.

Answer:

Development of a consumer culture