Compare and contrast American slavery with one of the following coercive systems of labor - Russian serfdom or the encomienda system.

1. Compare and contrast American slavery with one of the following coercive systems of labor - Russian serfdom or the encomienda system. 2. Describe and analyze the impact of the Columbian Exchange on one of the following regions between 1400 and 1700. Be sure to discuss the causes of the changes as well as reasons for the continuities.3. Compare and contrast the exploration and colonization practices of the Portuguese and Spanish with one of the following:FrenchBritishDutch