Final answer:
The items describe causes such as the lack of a strong central government and the need for protection, and characteristics like land grants for service of medieval feudalism.
Step-by-step explanation:
The feudal system in medieval Europe arose as a means to provide safety and protection in a time when strong central governance was lacking. Exploring the items in the question:
- Land grants to nobles in exchange for military service represents a characteristic of feudalism. Lords and kings bestowed land, or fiefs, upon their vassals who in turn provided military support.
- The fall of the Roman Empire is a historical event that helped create the conditions necessary for the development of feudalism, with its decline resulting in the lack of a strong central authority.
- The need for safety and protection and a fixed social class structure are both causes that led to the rise of the feudal system.
- The absence of a strong central government is also a cause of feudalism, as it led to local lords gaining more power and providing the necessary protection and governance.
- Turning to the Catholic Church for spiritual guidance reflects the sociopolitical landscape of the Middle Ages where the Church held significant power and land, but this item is not directly a cause or characteristic of feudalism itself.