Which retail logistics innovation was specifically developed to overcome geographic challenges in the remote regions of the Himalayas?

Retail logistics strategies vary dramatically across different geographic regions due to terrain, infrastructure, and population distribution challenges. Companies must adapt their supply chain management to these unique geographic constraints to effectively deliver products. This trivia question tests your knowledge about an innovative logistics solution developed specifically for challenging geographic environments.

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Drone-based delivery network that uses AI to navigate high-altitude wind patterns and terrain obstacles
Underground pneumatic tube system connecting major retail hubs in mountain villages
Solar-powered refrigerated yak caravans with GPS tracking for perishable goods
Helium-filled dirigibles that function as mobile retail stores for seasonal products