Which groundbreaking product packaging innovation of the 1960s transformed the beverage industry by allowing drinks to be portable, stackable, and easily opened without tools?

Throughout history, product packaging innovations have revolutionized entire industries, changing how we preserve, transport, and consume goods. Some packaging developments have had such profound impacts that they've altered consumer behavior and created entirely new markets. This trivia question focuses on a particularly revolutionary packaging innovation that transformed an industry and consumer habits worldwide.

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The pull-tab aluminum can (invented by Ermal Fraze)
The Tetra Pak aseptic carton (by Ruben Rausing)
The PET plastic bottle (developed by Nathaniel Wyeth)
The screw-cap aluminum bottle (by William Painter)