Which marketing strategy helped revive the traditional Japanese indigo dyeing technique known as 'aizome' in the global fashion market during the 2010s?

Traditional crafts and cultural practices around the world are increasingly at risk of disappearing as communities modernize. However, innovative marketing strategies have helped revitalize certain cultural traditions by creating sustainable markets for authentic cultural products. This trivia tests your knowledge about successful marketing campaigns that have helped preserve cultural heritage while creating economic opportunities for traditional artisans.

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Collaborations between master dyers and luxury fashion brands that highlighted the sustainability and cultural significance of the natural dyeing process
Mass production of synthetic indigo-dyed items marketed as 'authentic Japanese crafts' to make them more affordable to international consumers
Government-sponsored television commercials promoting indigo-dyed products exclusively to domestic Japanese consumers
Rebranding aizome as a modern invention from the 1980s to appeal to younger generations unfamiliar with traditional crafts