Which of the following policies aimed to assimilate Native Americans into European-American culture?

The Dawes Act is the correct response because it was specifically designed to assimilate Native Americans into European-American culture by allotting individual plots of land to Native American families. This policy aimed to encourage Native Americans to adopt farming practices typical of Euro-American settlers and to abandon their traditional communal lifestyles. By breaking up tribal lands and promoting individual ownership, the Dawes Act intended to integrate Native Americans into the dominant culture and reduce tribal sovereignty.

Other options do not directly relate to the assimilation of Native Americans. The Homestead Act facilitated Western expansion by providing land to settlers willing to farm it, which was more focused on colonization rather than assimilation. The Indian Reorganization Act sought to reverse some of the damage done by previous policies like the Dawes Act and intended to restore some autonomy to Native nations, rather than promote assimilation. The Morrill Act provided land for agricultural colleges, which was more focused on education than on cultural integration. Therefore, the Dawes Act is the most relevant policy to the assimilation efforts directed at Native Americans.