Answer:
The three ruling parties of Athenian democracy were the Assembly, the Council of 500, and the court system.
Step-by-step explanation:
In Athens, there were three political bodies where citizens participated in numbers that exceeded hundreds or even thousands. They were the Assembly (in some cases with a quorum of 6000), the Council of 500 (Boule) and the courts (minimum of 200 people, but sometimes up to 6000). Of these three institutions, the Assembly and the courts were the true organs of power.