Which company created the iconic K-Ration packaging for US troops during WWII, revolutionizing both military logistics and later influencing civilian food packaging?

During World War II, packaging innovations transformed how soldiers were fed on the battlefield. The development of compact, durable ration packaging had profound effects on military logistics and combat effectiveness. One particular product innovation became so iconic that its influence extended beyond the military into civilian consumer products after the war. Test your knowledge about this significant advancement in military consumer product history!

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The Wrigley Company (chewing gum manufacturer)
The Cracker Jack Company (popcorn producer)
The Kellogg Company (cereal maker)
The Waxed Paper Company (later Marathon Corporation)