C because she was spying and then bought slaves to get saved
Explanation:
During the Civil War, Harriet Tubman helped the Union cause by: C. spying on the enemy.
A Civil War can be defined as a state of conflict that arises between two or more states, towns or communities within the same country such as the war between the South and Union (North) of the United States of America.
During the American Civil War of 1861, Harriet Tubman helped the Union (North) cause by spying on the enemy from the South.
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