This image depicts a feudal manor in europe during the middle ages. how did the manorial system impact europe's economic development? a) trade decreased as manors allowed small kingdoms to become economically self-sufficient. b) manors allowed kings to focus on one or two main crops and trade with other kings for the crops or goods that they needed. c) this system taught peasants how to effectively farm, so when they left for other kingdoms new techniques and technologies spread with them. d) the manorial system required western europeans to travel farther east in search of crops such as corn and potatoes because of poor harvests in western europe from 500-1000.