The American Indian Movement (AIM) was a militant group. Option C is correct.
The American Indian Movement (AIM) is a militant American Indian civil rights organization, founded in Minneapolis, Minnesota, in 1968 by Dennis Banks, Clyde Bellecourt, Eddie Benton Banai, and George Mitchell.
This organization was devoted to the Native American civil rights movement. It was founded in 1968. Its main purposes are the sovereignty of Native American lands and peoples; preservation of their culture and traditions; and enforcement of all treaties with the United States.
