Carolina faced violent rebellion, attack from the Spanish, war with Indians, hurricanes, dropouts, and pirates.
Gassed then burned. Why would you gas them if they are burnt to death already?
C or d would be the answer
Fort Union was established to protect the cimarron route of the Santa Fe trail due to incessant attacks from the Indians. The Indians used to attack the American travelers who passed through that route.
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They Helped Babe Ruth In The 1920s That's Your Answer :)