Which invention, first implemented in retail in the 1970s, revolutionized customer feedback collection by allowing businesses to track purchasing patterns and gather customer opinions at the point of sale?

The retail landscape has been transformed by numerous technological innovations throughout history. Some inventions have fundamentally changed how customers interact with brands and how businesses gather customer feedback. This poll tests your knowledge about a groundbreaking invention that revolutionized customer feedback collection and retail analytics, giving businesses unprecedented insight into customer satisfaction and shopping patterns.

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The electronic point-of-sale (POS) system with customer survey capability
The mail-in warranty card with customer questionnaire
The in-store customer service kiosk
The toll-free customer service telephone number