Social organization, hunting, tool making, speech, the use of fire all combine to make human unique.?

social organization, hunting, tool making, speech, the use of fire all combine to make human unique.


which of these five factors is the most important development in the evolution of humans????????????????/





























pl. reply asap............Social organization, hunting, tool making, speech, the use of fire all combine to make human unique.?
Hunting, took making or use of tools, social organization are all things some of the animals (apes) can do too. I am doubting between speech because animals do ';speak'; to each other, we just do not understand that is why I speculate its fire, no animal can do that, yet.