Slavery was justified by appealing to people's religious beliefs by claiming that slaves had better lives than many free factory workers. Option D is correct.
What are the religious beliefs?
Religion is a collection of cultural systems, belief groups, and worldviews that link up the humanity to spirituality. Many religions have narratives, signaling, practices, and divine histories that are meant to afford significant to life.
Slavery was justified by religious beliefs, with slaves living better lives than many free factory workers.
Therefore, option D is correct.
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