The answer is D. India developed and maintained a securely centralized and powerful empire that lasted for centuries.
Answer:
stating that any member of any Indian tribe or nation residing in the Indian Territory could apply to the United States court to become a citizen of the United States; the members of the Confederated Peoria who had already received their allotments were declared
Explanation:
I believe the answer is A, Pollution of the environment, hope this helps :)
