In a famous consumer psychology experiment, which unexpected environmental factor was found to significantly influence wine purchasing behavior in a retail setting?

In the fascinating world of consumer psychology, subtle environmental cues can significantly influence purchasing decisions. One powerful technique retailers use is 'priming' - where exposure to one stimulus influences a response to a subsequent stimulus, often without conscious awareness. This poll tests your knowledge about a famous priming experiment that revolutionized how retailers understand consumer behavior and design store experiences.

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Playing French music led customers to buy more French wines, while German music increased sales of German wines
The scent of lavender in the wine aisle increased customer spending by 23% compared to unscented aisles
Displaying wines against blue backgrounds resulted in 18% higher perception of quality than wines displayed against red backgrounds
Placing more expensive wines at eye level doubled their sales compared to the same wines placed on bottom shelves