Which mobile commerce innovation was first introduced by a major grocery retailer and subsequently transformed the food shopping experience worldwide?

The food retail industry has undergone significant transformation with mobile commerce changing how consumers shop for groceries. From in-app purchasing to contactless payments, mobile technology has reshaped the grocery shopping experience. This poll tests your knowledge about a groundbreaking mobile commerce innovation that changed food retail forever. Do you know which mobile technology first revolutionized the grocery shopping experience?

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Instacart's personal shopper model (2012)
Tesco's virtual subway store in South Korea (2011)
Amazon Go's just walk out technology (2016)
Walmart's Scan & Go app (2013)