Which of these popular consumer food products was originally developed as a military ration item during WWII, later becoming a retail success through innovative marketing of its battlefield origins?

The development of military rations has influenced consumer food products in ways many people don't realize. Innovations created for feeding troops in combat zones have transformed civilian food packaging, preservation techniques, and convenience foods. This trivia question explores how a specific military food product made the leap from battlefield necessity to household name, revolutionizing retail food marketing and becoming an iconic brand in the process.

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SPAM (Hormel Foods)
Tang (General Foods)
M&M's (Mars, Inc.)
Coca-Cola in cans