Feudalism and manorialism are related but distinct concepts from the medieval period.
Feudalism primarily describes the system of hierarchical relationships and obligations among the warrior nobility, where land (fiefs) was exchanged for military service. It involved the relations between monarchs and nobles, as well as between nobles and their vassals.
Manorialism, on the other hand, refers specifically to the economic and social system of the manor, which was the basic unit of agricultural production. It involved the local relationships between lords and serfs or peasants, focusing on agricultural work and the obligations of the serfs to their lords.
Among the provided responses, the one that correctly highlights the difference is: "Feudalism controlled relationships between nobles and monarchs." This emphasizes feudalism's focus on political and military arrangements, while manorialism was more about economic relations on the land.