I believe D is the correct answer. If Japan (or any country) were to be hit with the largest natural disaster in recent history, it would most likely sway people away from migrating into the country.
Answer:
The act authorized the president to grant Indian tribes unsettled western prairie land in exchange for their desirable territories within state borders (especially in the Southeast), from which the tribes would be removed.
Explanation:
I think I do not know for sure, but I believe it was "civilization and enlightenment."
Hope this helps please tell me if it did. ;-)
This would be an answer
But I don't know exactly what your answer choices are.
Any real person that has has first hand experience in the subject.