Answer:
agonist is the correct option.
Well, not in the development as it would have happened otherwise: the whole American civilization, many people and life style was wiped out., Africa was also suffering from all the slaves taken from it. Only the Europeans profited.
From the point of view of the natives: not.
From the point of view of the Europeans? yes.
From the point of view of the Africans? not.
Personally? I am a great fun of American languages and, and I wish they were better maintained and I think slavery is a prize to pay for anything. No, I don't think it was a positive change, not with all the deaths and suffering.
There were settlement houses run by sympathetic people and churches that helped house and feed the poor. Also, political bosses would help the poor get jobs and such in return for their votes.
