Which retail innovation was first developed specifically to address geographical challenges in rural American communities in the early 20th century?

In the intersection of retail and geography, innovations have shaped how products reach consumers across different terrains and markets. This poll tests your knowledge about a groundbreaking retail innovation that transformed how geographical challenges were addressed in product distribution and accessibility. Think about how retailers have adapted their strategies to overcome physical barriers and reach consumers in remote locations.

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Mail-order catalogs (Sears Roebuck & Co.)
Self-service grocery stores (Piggly Wiggly)
Department store chains (Macy's expansion)
General store franchising (Western Auto)