Answer:
Party system
Explanation:
The party system is originated from European scholars, especially James Bryce and Moisey Ostrogorsky
The party system refers to the system and arrangement of political parties in a political system or democratic state. It encompasses such things as the number of parties, party dominance, Party structure and similarities. Giovanni satori is known to have come up with the most preferred ways of classifying party systems. more commonly there are multi-party systems, single party sytems and two party system
The answer is B evolution:))
I think the answer is B because it says it in the passage on PLATO