The answer is B. Mikhail Gobachev
Answer: Answer A
Explanation: " Harsh conditions on most reservations made hunting and farming for subsistence impossible, leading to conflicts over access to resources" does not talk about hostilities between the US government and American Indians living on reservations.
I can't verify the answer but here is a link
https://en.wikipedia.org/wiki/Natural_and_legal_rights
I think A would be answer