Plato is called the father of idealist theory of the state because

[A] He postulated a dualism between reality and value

[B] He prescribed the ideals of city state

[C] His theory was based not on what human nature is but on what it ought to be

[D] He based his theory on the idea of the good

Answer & Explanation
Answer: His theory was based not on what human nature is but on what it ought to be