A. Feudalism was an effective protective measure against Germanic tribes
This statement accurately reflects one aspect of the impact of feudalism after the fall of western Rome. Feudalism arose partly as a response to the invasions and instability resulting from the collapse of centralized Roman authority, including threats from Germanic tribes. The feudal system provided local lords with the means to protect their lands and people, as they could raise private armies from their vassals in exchange for land or other services.