Most disturbing and horrific would probably be the way that workers could be mutilated by the machines or by human error and nobody would care about that. They would have to keep working without fingers or hands because not working would mean the end of their families. The injuries sometimes didn't have to be mutilation but were still severe.
Answer: They put villages by water sources, like rivers and lakes and oceans. These then grew into their cities.
Moctezuma I was a great leader, probably the best of the Aztec rulers. He was a great military commander, but also politician and diplomat. Moctezuma I wanted to have everything under control in the empire, and also to put order in it and make a proper class system. This resulted in multiple reforms in the political, social, and economic spheres. Politically, Moctezuma I managed to form the Triple Alliance, managing to make an alliance with two other empires, sharing the land, resources, and rule, while maintaining the dominant power in it. He established himself as the absolute authority, so everyone had to notify him of everything that was considered important and he had to give permission for it to happen. Socially, he created the classes, setting up rules which people can be in what class, what kind of homes can they have, what objects they are allowed to visit, but also forbid mixing of the classes. Economically, he created aqueducts and much better developed agriculture and usage of the natural resources, while also developing the trade.
During campaigns, politicians create a lot of promises that may be impossible to do. A lot of people also hope that elected officials will serve the people without political division or greed. There was also lost of trust in the government.
The awnser is C: China got invaded by Japan forces.