The answer is option A "<span>moving onto American Indian lands".
Reason:
The answer is option A because indentured servants who usually were freed cause conflict by moving on Indian territory. Its also not option B because plantations are mainly where slave works. Its also not option C because indentured slaves wouldn't by more slaves because Africans were not allowed o do that at the certain point of time. Its also not D because Jamestown was built by colonists.
Answer: here are two reasons: (Article III) Federal Judges are appointed for life because that is how it was written into the US Constitution. (2. )The writers of the Constitution gave federal judges job security because they wanted judges to be able to decide cases free from public or political pressures.
Yes, revolution is necessary in bringing about political change because it also brings social and economic changes which have the power to influence political change.