Answer:
Option 3: He argued for the rights of indigenous people.
Step-by-step explanation:
Bartolomé de las Casas was a Spanish priest and historian who was deeply troubled by the mistreatment and exploitation of Native Americans by Spanish conquistadors. He believed that the indigenous people had the same rights as any other human beings and should be treated with dignity and respect. Las Casas is best known for his writings and advocacy on behalf of the rights of indigenous populations, and he played a significant role in the early debates about the treatment of Native Americans during the period of Spanish colonization.
Hope this Help you.