the answer is d,that's what i am studying now.
<span>government gridlock.</span>
Social Darwinism- the belief that the theory of survival of the fittest also applies to people.
white mans burden- the belief that Europeans had an obligation to improve their cultures.
nationalism- extreme patriotism and loyalty to a nation.
superior- of higher rank, greater importance, or higher equality.
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I believe the process you are looking for would be urbanization.