C. They had lost land during border disputes after World War I.
C he threatened to use force on the tariffs in south Carolina
Higher Prices due to the lack of incoming goods and capital.
Answer:
If they can survive this civil war and still stay as a union, they will stay a union.
Explanation:
What does Lincoln mean by calling the Civil War a test of the ability of the nation to "long endure"? If they can survive this civil war and still stay as a union, they will stay a union.