Answer:
A) The US feared European aggression would harm Americans!
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The northeastern farmers migrated to the west in order to make living. When they were in the west, they start over on u farmed lands.
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These guys basically plucked from a handful of "sinful wrongdoers" that they believed were to be punished by their own god, and yet took things into their hands. They'd accuse any woman as of being a witch. A servant girl, a sick old lady married to her servant, a homeless begger. And so forth. They played the game telephone and spread lies about anyone and everyone resulting in innocents dying.