That is because companies started moving to china because the Chinese workers were paid less so naturally the companies wanted to earn more money and cut losses by firing the Mexican workers and outsourcing their factories and positions to China.
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Answer:
The American Revolution
Explanation:
(I'm not too sure if this is right so don't take my word for it)
The alliance of Native Americans in the area with France.
On average men Drink more, Smoke more and fall under other major things so on average they die younger
The answer that best applies to both the Tang and Song dynasties would be C. A Reliable food production and distribution system. This gave both dynasties the ability to thrive.