Which sensory marketing technique did Cinnabon strategically implement in shopping malls to dramatically increase sales?

The food industry invests billions in understanding consumer psychology to influence purchasing decisions. From strategic product placement to color psychology on packaging, food companies leverage subtle techniques to trigger cravings and brand loyalty. This trivia question explores one fascinating aspect of how major food brands manipulate our senses to drive sales. Test your knowledge about the psychology behind food marketing strategies!

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Placing ovens near mall entrances to pump artificial cinnamon scent through ventilation systems
Installing hidden bakeries behind storefronts to waft natural aromas throughout mall corridors
Using silent ultrasonic technology that triggers hunger receptors in the brain
Releasing microencapsulated scent molecules through digital advertising displays