Which marketing campaign holds the Guinness World Record for the largest product sampling event in a 24-hour period?

The world of retail has seen some incredible marketing campaigns, but some have broken all records in terms of scale, impact, or customer engagement. These legendary campaigns have entered the Guinness World Records and transformed how we think about retail marketing. Test your knowledge about the most extraordinary marketing campaign that earned its place in the record books!

This is a live public trivia poll on AIPolls.Net. Vote and see real-time results.

Coca-Cola's 'Share a Coke' campaign in Brazil (2013) with 2.3 million samples distributed
Nescafé's sampling event in Mexico (2012) with 3.1 million coffee samples
Lay's 'Do Us A Flavor' campaign in China (2015) with 1.8 million chip samples
Unilever's Lipton Ice Tea sampling across Australia (2014) with 2.5 million samples