That would be D.The Warsaw Pact. The Warsaw Pact was a treaty undertaken by the Soviet Union and her sister communist countries in Europe, the Middle East and Asian in which the Soviet Union used to strengthen the hold of communism on the countries in the Warsaw Pact.
The Catholic Church became corrupted, due to its overgrown power. Because of the Pope's overspendings, the Pope started the Sales of Indulgences. The Sales of Indulgences was a scheme to earn more money. It made people spend money so that they/family members go into heaven. This upsetted a reformer, Martin Luther. That started the Reformation. So in summery, the Catholic Church gained to much power ( more than the nobility) and it wanted more money. BTW, this only a little bit of it.
Athenians were able to vote but they were not true democratic
