Early humans needed to find shelter in caves to survive in cold environments, as caves offered protection from the elements and predators. Banding together in groups also played a critical role in their survival. While communication and minimal possessions were significant, physical shelter was essential for their existence. ;
The necessary early human development for survival in cold environments included finding shelter in caves for protection against weather and predators, as well as banding together in clan groups for cooperative support and resource sharing. The option chosen is A. finding shelter in caves.
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