Option D. The answer is thatJohn Brown was responsible for the raid on Harpers Ferry in 1859.
He was an abolitionist in the United States of America. This was during the time that the nation was highly into slavery.
He was known to have been very radical and violent in the way that he went about the fight against slavery in the nation.
Read more on John Brown here:
https://brainly.com/question/14038468
#SPJ1