Answer:
B. Its command economy could not produce enough necessary goods for its citizens.
Explanation:
The Soviet collapse was due to the decline of communist ideology and economic failure. During the 1980’s Ronald Reagan had isolated the soviet economy from the world, by dropping their oil and gas prices, once this happened they began to lose their power in Eastern Europe. Their economy fell to the floor, affecting the whole country.
Explanation:
The structures of absolute monarchy and the authoritarian state [the Christian Church], who were the dominating sources of governance and learning, were attacked by Enlightenment philosophers, who thought that reason will lead to general and absolute truths. The excesses of both institutions were the basis for this critique.
Ottoman Army was the group that captured Constantinople.
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This naturally led to the diffusion of multiple inventions, both those of the Mongols and those ideas the Mongols usurped from cultures they conquered. While the Mongols profited from the trade of silk and tea from China to Europe, they also spread the Chinese inventions of printing and paper.