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1. The construction of the Great Wall began in the Qin dynasty under the first emperor Shi Huangti. The answer is B: Qin.
2. A and B do not explain some of the reasons the empire declined. A and B are eliminated. Tax revenue went down, but it wasn’t exactly due to tax cuts. People just started disobeying the rules. There were emperors that ruled for their own amusement. The scholars and generals were searching for lots of power. The answer is C.
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