Question

A major reason for the formation of groups like the National Congress of American Indians was
President Kennedy’s unwillingness to help American Indians.
American Indian activists’ refusal to work with the government.
the inadequacy of efforts to improve the lives of American Indians.
the need for new treaties between the US government and American Indians

Answer 1

the inadequacy of efforts to improve the lives of American Indians.

The NCAI was formed to protect tribal sovereignty and rights and to press for better federal policies and services after government efforts were insufficient (and sometimes harmful, e.g., termination and assimilation policies).