PT 18 S3 Q20

Until recently, it was thought that the Cherokee, a Native American tribe, ... ...

Which one of the following, if true, would most seriously undermine McLoughlin's account of the course of reform among the Cherokee during the 1820s?
(A) Traditionalist Cherokee gained control over the majority of seats on the Cherokee council during the 1820s.
(B) ...
(C) ...
(D) ...
(E) ...

*This question is included in Practice Set: History & Humanities Mix 3