The Declaration Of Independence was Thomas Jefferson's timeless statement of America's first principles.
In the Spanish colonies in America the colonists created a kind of caste system based on ethnic hierarchy which of course put the Spaniards on top. The rest of ethnic groups ranked based on their resemblance of the Spaniards so for example the Indians would be ranked higher than Blacks as they more resembled the Spaniards.
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To understand why French Canadians have struggled to settle in the west, historians have focused primarily on cultural differences. New research reveals that English and French speakers have somewhat different personal characteristics. Large-scale migration into New England balanced the demographic and human capital profile of French Canadians. Although if by the 1880s the U.S. had introduced immigration controls, many French Canadians would not possibly have been redirected westward, writers claim. There was little chance of later chain migration of French Canadians to the West, they add, without much of the base built by the beginning of the twentieth century. The only mainly French-speaking province in 1867 was Quebec, although it was one out of four provinces. Just about 5% of western Canada's white population spoke French as their mother tongue in 1901. Political structures in the new provinces of Alberta and Saskatchewan were most unlikely to be built with Francophones in mind without a significant minority of Francophone voters in the early 1900s. Chain migration is sometimes provided as a dominant explanation, but every chain has a beginning, for the locational concentrations of migrants of one ethnicity or regional history.
A and b I believe are correct