Which retail pricing innovation, first introduced in the 1860s, eliminated haggling by displaying fixed prices for all customers to see, revolutionizing the shopping experience?

In the history of retail, certain innovations fundamentally changed how merchants priced their goods. Before the mid-1800s, haggling was common in Western stores, with prices varying based on the customer's perceived wealth or negotiating skills. One revolutionary invention changed this practice forever, introducing transparency and standardization to the shopping experience. Test your knowledge about this pivotal moment in retail history!

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The price tag, pioneered by John Wanamaker in Philadelphia
The catalog price list, introduced by Montgomery Ward
The window display pricing, developed by Marshall Field in Chicago
The newspaper advertised price, popularized by F.W. Woolworth