Which of the Following Was Among the Major Impetuses Behind

Which of the following was among the major impetuses behind the rise of a Native American rights movement in the late 1960s?

A) the effective work of the Bureau of Indian Affairs
B) the introduction and widespread popularity of Native American history courses
C) the realization of Native Americans that their votes could swing elections in several states
D) the fact that Native Americans were still not recognized as citizens
E) high unemployment and suicide rates among the Native American population