The correct option is Asset tracking and inventory management.

RFID technology is used in retail to attach unique radio tags to items so that stores can automatically detect and count products without direct line of sight. This capability supports faster cycle counts, improved stock accuracy, reduced shrink, and automated replenishment when integrated with inventory and warehouse systems.

Cloud IoT Core is a cloud device management and telemetry service and not the primary purpose of RFID in daily store operations. It is also a deprecated Google service and so it is less likely to appear as the correct answer on newer exams.

Contactless payment facilitation is typically handled by NFC enabled payment terminals and secure payment networks and not by the passive RFID tags used for inventory tracking.

Support for voice call communication is unrelated to RFID because voice requires cellular or IP telephony systems and RFID does not provide two way voice capabilities.

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