Which major global retail chain has opened a physical store location in Antarctica?

In the world of retail, geographic expansion is a key strategy for growth. Major retailers carefully analyze regional markets, consumer behavior patterns, and logistical challenges when entering new territories. Some areas of the world present unique challenges that have deterred even the most ambitious retail giants. Test your knowledge about one particularly challenging frontier in retail geography!

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Walmart (with a specialized compact format store at McMurdo Station)
Amazon (with an Amazon Go unmanned convenience store for research personnel)
Starbucks (with a limited-menu café inside the Amundsen-Scott South Pole Station)
None - no major retail chains operate physical stores in Antarctica