The correct answer is C) as food became more plentiful, people were freed up to serve as community leaders.
According to anthropologists, planting crops lead to the rise of a political class because as food became more plentiful, people were freed up to serve as community leaders.
Anthropologists considered that once the survival mode ended and basic necessities were covered, humans began to have the time to think about other things to help develop society. After learning to farm the fields, people established forms of government and developed the first style cities that for instance, in the case of early civilizations such as Sumeria, were important city-states such as Lagash, Kish, and Uruk.