15. John Brown's raid on the federal arsenal at Harper's Ferry and his subsequent trial and execution had the effect ofA. Discrediting the abolitionist movement in the eyes of most people and convincing most Southerners that the North would not support forceful efforts to end slavery, despite verbal attacks on slavery by Northern abolitionists.B. Inciting a series of slaver revolts that resulted in the deaths of thousands of Southern slaves, further enraging both Northern abolitionists and Southern slaveholders.Sparking a virtual civil war in the state of Kansas over the issue of slaveryD Making a martyr of John Brown and convincing many Southerners that secession from the Union was the only way they could prevent the increasingly abolitionist North from interfering with slavery in the South.

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