In ancient Rome, what visual merchandising technique did wine merchants commonly use to advertise their shops to illiterate customers?

The ancient world had sophisticated retail systems long before modern shopping malls. From Mesopotamian bazaars to Roman macella (food markets), these civilizations developed complex merchandising and retail logistics systems that influenced commerce for millennia. Test your knowledge about how ancient civilizations displayed, marketed, and sold their goods to consumers in some of history's earliest retail environments.

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Hanging grape vine wreaths above their doorways
Displaying amphoras with illustrated signs showing the wine's origin
Painting the exterior walls with Bacchus (god of wine) imagery
Mounting bush branches (Latin: vinum sub viburnum) outside their shops