The correct answer to this open question is the following.
Unfortunately, you did not attach the video or a link to it. Without the video, we do not know what is included there.
However, trying to help you we can comment on the following.
The opinion I have about Dr. Martin Luther King Jr. is that he was the most important civil rights leader in the United States.
I think that both, "Letter from a Birmingham Jail" and "I Have a Dream," show the pinnacle of his ideas and works as a civil rights leader, being the last one, the most famous speech of the civil rights era.
One of the most important characteristics attributed to Martin Luther King was his non-violent approach to protests. Something he learned from Mahatma Gandhi.
Answer:
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The most obvious reason is that one has to pack up and go because things are not so good at home. Long ago, that probably meant that the climate had changed and made life impossible. It might have become too hot or too cold or too wet, which in turn would have affected not only quality of life but also make survival a shaky proposition. Drought, flood, and temperature changes could certainly push people to move on.
I hope that helped a little.
It's important to note that most colonists, including the Puritans, didn't treat Native Americans with respect. They would enslave them, try to convert them to Christianity, and force them off the lands they had held for centuries (without any payment, even!). William Penn was different. He did NOT enslave them (B is incorrect), nor did he ignore them (C is incorrect). Instead, he tried to make peace with them. He treated them with respect, by letting them keep their traditions separate from the colonists (A is incorrect) and, when he needed land, paid a fair price for it. D is correct!
Answer: D