Final answer:
The long-term causes of the Civil War include failure of compromise, political power, and westward expansion.
Step-by-step explanation:
The subject of this question is History and it is targeted towards High School students.
The long-term causes of the Civil War, in addition to slavery and states' rights, include the failure of compromise, which refers to the inability of the North and the South to reach a peaceful resolution on the issue of slavery; political power, as both sides sought to maintain or expand their influence in the government; and westward expansion, which intensified the debate over the extension of slavery into new territories.
Therefore, option B is the correct answer, as it lists the remaining long-term causes of the Civil War: Failure of Compromise, Political Power, and Westward expansion.
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