What types of Government did Ancient Greece have and why do you believe it was chosen for the civilization?

these are the types of government;

Democracy - rule by the people (male citizens). Monarchy - rule by an individual who had inherited his role. Oligarchy - rule by a select group of individuals. Tyranny - rule by an individual who had seized power by unconstitutional means.

I believe that these were chosen because in Athens Democracy was born for a fair justice system but, other cities like Sparta there was a political system was a combination of monarchy (kings), oligarchy (Gerousia) and democracy (ephoroi, ephors). Oligarchy - Sparta always had two kings, the state was ruled by two hereditary kings of the Agiad and Eurypontid families (probably the two gens had great merits in the conquest of Laconia).