Which retail company holds the Guinness World Record for the largest annual single-day online sales event?

Test your knowledge about the extraordinary achievements of retail giants in the Guinness World Records! The world of retail has seen some remarkable milestones that have earned companies prestigious spots in record books. From the largest stores to the most extensive online inventories, retail companies continue to push boundaries. Can you identify which of these retail giants achieved the most impressive world record?

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Alibaba (Singles' Day - $38.4 billion in 24 hours)
Amazon (Prime Day - $21.2 billion in 24 hours)
Walmart (Black Friday - $25.1 billion in 24 hours)
JD.com (618 Shopping Festival - $29.8 billion in 24 hours)