Answer: c
In Plato's just state, people are divided into three groups philosopher-kings, warriors, and producers.
Explanation: plato, believes the human soul has three parts according to the three classes of the society in a just city.
Individual justice consists in maintaining these three parts the correct power relationships, with are the reasons ruling, spirit aiding reason, and appetite obeying.
philosopher:- the philosopher- kings is a hypothetical ruler who's philosophical knowledge and political skills are combined with each other.
warriors:- the warriors are a troublesome addition to the city founded by socrates. constant supervision and a heavy-handed pedagogy are required so they cannot oppress the producing class.
producers:- largest class of the society is the producer class , this include  all professions other than warrior and ruler.
plato's argued that a community has three parts philosopher-kings, warriors, and producers each part performs their own functions.
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