Which groundbreaking product development decision by Milton Hershey in 1900 revolutionized the American chocolate industry?

Milton Hershey's journey to creating one of the world's most recognized chocolate brands involved remarkable product development decisions. His commitment to quality, innovation, and accessibility transformed chocolate from a luxury item into an everyday treat. This poll tests your knowledge about a pivotal product development decision that helped establish the Hershey Company's early success and shaped modern chocolate manufacturing.

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Developing a milk processing method that prevented spoilage, allowing mass production of shelf-stable milk chocolate
Introducing individually wrapped chocolate squares, the first bite-sized chocolate portions on the market
Creating the first chocolate bar with almonds, establishing the trend of adding nuts to chocolate
Inventing a chocolate coating that wouldn't melt at room temperature, revolutionizing chocolate packaging and shipping