After the fall of Charlemagne's empire, what was the primary problem that the system of feudalism was developed to solve?

Widespread famine and crop failure

The inability of weak kings to defend their lands from invaders

Religious disputes between different Christian groups

The need to create new trade routes to Asia

In the feudal system, what did a powerful lord grant to a vassal to secure their loyalty and service?

A piece of land known as a fief

To provide knights and military service when needed

To build churches and monasteries on the land

To farm the land and provide food for the kingdom

A single king held all authority and made every decision.

Power was concentrated in the hands of wealthy merchants.

Power was shared between the king and a central parliament.

Power was decentralized and spread out among many local lords.