Which of the Following Statements About Native Americans Is INCORRECT

Which of the following statements about Native Americans is INCORRECT?

A) Native Americans on the Great Plains had horses before the Europeans arrived.
B) Lack of immunity to European diseases killed 90 percent of Native Americans within 100 years after contact.
C) Native Americans likely came originally from Asia, over the Bering Strait land bridge.
D) By 1907, only 2 percent of the original Native American population was left