Which revolutionary supply chain innovation helped the Allied forces achieve logistical superiority during the Normandy invasion (D-Day) in World War II?

Supply chain management has been crucial to military success throughout history. From Alexander the Great's revolutionary logistics corps to modern just-in-time delivery systems for military equipment, the evolution of military supply chains has often determined battlefield outcomes. Test your knowledge about famous military supply chain innovations that changed the course of warfare!

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The Mulberry Harbors - prefabricated portable ports that allowed rapid offloading of supplies on beaches without natural harbors
Operation Red Ball Express - a dedicated truck convoy system that delivered supplies after the invasion but wasn't used during the initial landing
The Liberty Ships - mass-produced cargo vessels that primarily served in the Pacific Theater, not the D-Day operations
PLUTO (Pipe Line Under The Ocean) - which wasn't operational until after the initial invasion phase was complete