What best characterizes slavery in the north during the revolutionary era?

The slavery in the North never reached the same number and intensity of the slavery in the South. The controls and tactics of the slaves were less severe than that of the South, though there were slaves who played key roles in the eve of the revolution at different parts of America. Though in the North, the slave population decreased faster than that of the South.  

a) hostility to or prejudice against jews.

b) the holocaust, also referred to as the shoah, was a genocide during world war ii in which nazi germany, aided by its collaborators, systematically murdered approximately 6 million european jews             , around two-thirds of the jewish population of europe, between 1941 and 1945.

answer: karl marx, max weber, and emile durkheim (the fourth could be considered georg simmel)

explanation: