After John Brown was tried, convicted, and hanged, many Northerners attacked the prison where he had been held.
considered him a hero of the antislavery cause.
feared others would embrace violence as he had.
worried about the admiration that surrounded him.

B - Considered him a hero of the antislavery cause

Explanation:

Just took the test

it was a act of seld fesnse more over it was a peace treaty between the fogein contunries.

thurgood marshall

explanation: in 1954, thurgood marshall and a team of naacp attorneys won brown v. board of education of topeka, kansas. in this landmark decision, the supreme court held that segregation in public education violated the equal protection clause of the fourteenth amendment.