Answer:
The correct answer is many still thought of themselves as british so they lacked a unified army.
Explanation:
the answer is your mom :)
The correct answer is that he is D. indicating what happens to tribes that don't unite against the whites.
We know this because immediately afterwards he is answering his question: "They have vanished before the avarice[greed] and oppression of the white men" - so he says that this might also happen to the others.