Which retail innovation of the 1920s fundamentally changed American product distribution by allowing rural customers to access a wider variety of goods than local general stores could provide?

The retail industry has evolved dramatically through history, with innovations that transformed how products reached consumers. From ancient marketplaces to modern commerce, each era brought significant changes to retail methods. This question explores a pivotal moment in retail history that revolutionized consumer access to products and changed shopping habits forever. Test your knowledge of how retail distribution evolved in America!

This is a live public trivia poll on AIPolls.Net. Vote and see real-time results.

Mail-order catalogs from Sears, Roebuck and Company
Chain supermarkets with self-service shopping
Door-to-door traveling salesmen networks
Telephone ordering systems with local delivery