Answer:
Imperial monopolies provided peace and stability
Explanation:
The disintegration of the Roman empire freed Europe from rule by a single power. Imperial monopolies provided peace and stability, but by seeking to preserve the status quo also tended to stifle experimentation and dissent.
B, because when Japan attacked China, China unified to fight a common enemy.
The Pullman strike was caused by the panic of 1893, George Pullman, which increased hours for working and they cut down wages.
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