Which of the Following Principles Was NOT Used as a Justification

Which of the following principles was NOT used as a justification for colonial rule and land acquisition?

A) Indigenous land was considered "unoccupied wasteland" that could be appropriated to the government.
B) Indigenous people did not "own" their land because they did not transform it through labor.
C) Europeans could take lands they conquered simply by self-declared "right of discovery."
D) Eradication and genocide of indigenous, pagan populations was a sacred mission of Christianity.