Correct answer choices are :
1) Depended on serfs to work the land
5) Ensured vassals to pay homage to the king
Step-by-step explanation:
Feudalism was a mixture of legal and military systems in ancient Europe that prospered between the 9th and 15th centuries. Broadly described, it was a way of structuring society around connections received from the holding of land in a transaction for service or labor. Feudal society is a military government in which a ruler or lord gives mounted fighters a fief profitable, a unit of land to control in trade for a military service.