Labor organizer and socialist leader Eugene V. Debs (1855-1926) began his rise to prominence in Indiana's Terre Haute lodge of the Brotherhood of Locomotive Firemen. ... Late in life, Debs was sentenced to 10 years in prison for his opposition to the United States' involvement in World War I.
Answer: Declaratory Act (of 1766) I believe
Explanation:
The answer is A. The Dred Scott Case helped convince John Brown that slavery would not be abolished by the courts.