Which ancient civilization invented the first known standardized retail pricing system, where goods had fixed prices marked on them rather than requiring haggling?

Before modern shopping malls and e-commerce, ancient civilizations had sophisticated commercial systems. From Mesopotamian bazaars to Roman macella (markets), retail has ancient roots. This trivia challenges your knowledge about one of history's most innovative ancient retail systems and how it shaped commerce for centuries to come.

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Ancient Egypt, where pricing papyri from the New Kingdom period (1570-1069 BCE) show standardized values for market goods
Ancient Rome, where the Diocletian Price Edict of 301 CE established maximum prices for over 1,000 products across the empire
Phoenicians, whose trading posts used a uniform pricing system with metal tokens to represent standard values in the 9th century BCE
Han Dynasty China, where government-regulated markets implemented fixed prices on silk and grain products around 100 BCE