The answer is D) two-party
Corrupt leaders made the democracy of Rome compromise itself and led to monarchy and then sometimes to ruin
Explanation:
The Democracy of Rome had many intricacies that excluded a number of people from ever participating and made it in a way an exclusive group that could ever hope to hold political power.
This made it easier for the government to be very corrupt and they had very little accountability.
The people became dissatisfied and thus many times supported the foundation of monarchy or even found the city in state of civil war multiple times in centuries.
The answer is religious ideas because the Mandate of Heaven is essentially that of there being a Chinese emperor ruling by divine right.