Answer:
The correct answer is A. Native Americans on the Great Plains had horses before the Europeans arrived.
Step-by-step explanation:
This is completely untrue. There has been a misconception that Native Americans had horses before Europeans. Fossils of horses and their ancestors have been discovered in Europe, Asia as well as Africa.
The rest of the points are correct. It is generally accepted that native Americans came from Asia over the Bering strait bridge thousands of years ago.
it is also true that by 1907, only 2% of Natives lived in America. Today, they are protected minority in US.