Which innovation did ancient Romans develop that revolutionized their supply chain management and product distribution across the Mediterranean?

The Roman Empire's dominance wasn't just about military might - their sophisticated product distribution networks were revolutionary for ancient commerce. From standardized amphoras to complex trade routes spanning three continents, Rome's supply chain management was centuries ahead of its time. Test your knowledge about how the ancient Romans moved goods across their vast empire!

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The Cursus Publicus, a state-run postal and transportation system with designated routes, stations, and quality standards for moving goods
A network of trained carrier pigeons that delivered written supply manifests between major trading hubs
Solar-powered semaphore towers that transmitted inventory levels and product demand signals across the empire
Specialized merchant submarines that could deliver luxury goods while avoiding pirates and adverse weather conditions