The correct answer is D) Assimilating Indian children into white society.
Residential schools that were established in Canada and the U.S. had the primary objective of assimilating Indigenous or Indian children into white society. These schools aimed to eradicate Indigenous cultures, languages, and traditions by enforcing European or Western education, language, and cultural practices upon Indigenous children. This assimilationist approach was part of a broader colonial policy that sought to erase Indigenous identities and cultures in favor of assimilation into the dominant white society. The establishment and operation of residential schools have had a deeply damaging and traumatic impact on Indigenous communities, with long-lasting consequences that are still being addressed today.