C.
The document is advertising that slaves will be sold.
The significance of the 54th Massachusetts regiment was that it was the first African-American regiment to play a major role in a military campaign.
<h3>What is the
54th Massachusetts regiment?</h3>
During the American Civil War, this infantry regiment saw an extensive service in the Union Army which included the African-American.
Therefore, the infantry regiment was significant because it was an all black regiment of troops during the Civil War.
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Answer: They used treaty or forced.
Explanation: If you read about the Columbian Exchange you find out that the colonizers exchanged gifts with the Natives and exchanged diseases and what they mean by that is they poisoned the Natives with the food they gave them. Once most of the population was dead the success of England's colonies depended on the exploitation of Native Americans who were forced off their lands.