C.
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He had to flee China when the communists took over.
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Explanation:
Social Darwinists believe in “survival of the fittest”—the idea that certain people become powerful in society because they are innately better. Social Darwinism has been used to justify imperialism, racism, eugenics and social inequality at various times over the past century and a half.
The Louisiana Purchase is important because it gave the U.S. control of the Mississippi River and the port city of New Orleans, both of which were used by farmers to ship their crops and get paid.
Answer:
letting the toy car roll down a ramp
Explanation:
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