Final answer:
Abraham Lincoln felt slavery was a moral evil, while Stephen Douglas believed it was an economic necessity.
Step-by-step explanation:
The correct answer is B. Lincoln felt slavery was a moral evil, while Douglas thought slavery was an economic necessity.
Abraham Lincoln and Stephen Douglas had opposing views on slavery. Lincoln believed that slavery was morally wrong and advocated for its abolition. He argued that all individuals should have equal rights and that no one should be enslaved.
On the other hand, Stephen Douglas supported the idea of popular sovereignty, which meant that the residents of each state or territory would vote whether to allow slavery or not. He believed that slavery was an economic necessity for the South.
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