Which retail technology innovation did Amazon first introduce in its Amazon Go grocery stores that allows customers to shop without going through a traditional checkout process?

Test your knowledge about cutting-edge retail technology transforming the food shopping experience! As grocery stores compete to provide the most convenient and efficient shopping experience, various technologies have been implemented to enhance customer satisfaction and streamline operations. This trivia question focuses on a game-changing technology that has revolutionized the checkout process in modern grocery stores.

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Just Walk Out technology (using computer vision, sensor fusion, and deep learning)
RFID tag scanning (using radio frequency identification on each product)
SmartCart (shopping carts with built-in scanners and payment systems)
Facial recognition payment (using biometric data linked to payment methods)