The Indus Valley was first visited by . villagers
farmers
nomadic pastoral groups
hunter-gatherers

The Indus Valley was first visited by hunter-gatherers

- "a new era of american politics began with jackson's election in 1828, but it also completed a grand social experiment begun by the american revolution. nevertheless, jacksonian democracy represented a provocative blending of the best and worst qualities of american society."

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the answer would be:

b. race