Which company introduced the first widely successful mobile payment system that allowed customers to pay by scanning a QR code linked to their account?

The retail payment landscape has evolved dramatically over the decades, with technological innovations constantly reshaping how consumers complete transactions. From cash registers to contactless payments, each advancement has created new opportunities and challenges for retailers and consumers alike. This trivia question tests your knowledge about a significant payment technology milestone that transformed the retail industry and consumer behavior.

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Alipay (Ant Financial)
PayPal
Apple Pay
Square