I’m pretty sure the answer is D
Answer: Rocky Mountain Rendezvous. Rocky Mountain Rendezvous (in trapper jargon) was an annual gathering (1825–1840) at various locations held by a fur trading company at which trappers and mountain men sold their furs and hides and replenished their supplies. I would chose the trading answer.
Answer: The term color line in history means racism. This term was used to reference racial segregation that existed in the United States after the abolition of slavery.
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3.) to protect individual rights
