Which of these correctly describes an effect of the Compromise of 1850 on escaped slaves and freedmen?

Why is it useful for historians to base certain studies on the analysis of historical themes

In shifting to a defense policy based upon the concept of "flexible response," president kennedy was indicating that he had grave doubts about thevalue of which previous defense policy? a massive retaliationb collective securityc containmentd air power

What is the impact of enlightenment ideals on the development of economic, political, and religious structures in the western world?