Persian wars.
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The correct answer is letter A.
Explanation: In the nineteenth and in the twentieth century most of people classified as middles class were living in tenement houses with bad conditions, but it was where they could live.
The English colonists in America brought with them ideas including the need for an ordered social system, or government, the idea of limited government, that is, that government should not be all-powerful and the notion of a representative government which serves the will of the people.