Which company introduced the world's first commercially successful QR code payment system, launching in 2011 and revolutionizing mobile payments?

The way we pay for goods has transformed dramatically over the decades. From cash registers to contactless payments, retail payment innovations have changed shopping experiences worldwide. This trivia question explores a pivotal moment in payment technology history that revolutionized retail transactions. Test your knowledge about the technological breakthroughs that shaped modern commerce!

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WeChat Pay (Tencent)
Alipay (Ant Financial)
M-Pesa (Safaricom)
Square (Block, Inc.)