In what ways were the justifications for slavery and expansion similar?

Answer: The ideal answer should include:
a. Both drew from the discourse of morality to justify their actions.
b. Apologists in the South defended slavery by arguing that because slaves were introduced to Christianity, slaves would find eternal salvation in the afterlife.
c. Expansionists such as John L. OSullivan invoked the will of God to explain Americas expansion.
d. Both also emphasized the benefits, whether of slavery or expansion.
e. Those who defended slavery argued that slaves learned practical skills.
f. They also argued that Africans were better off as slaves in America than if Africans had remained in Africa.
g. Those who advocated expansion believed that the spread of democracy would benefit everyone in the world.