Which characteristic is essential in order for people to be considered a social group?
A. They must include people of all ages.
B. They must have shared interests.
C. They must live near one another.
D. They must include a minimum of 10 people,

The correct answer is a. when they started making tools that will them in cultivating lands, they could raise crops and that made them attached to one place for a longer period of time. after that, they started domesticating animals and building their own permanent settlements that resemble the ones we have today.