How did Feudalism work? 
 Select all that apply. 
 -A Lord would be given land by the king in return for homage or a promise to serve the king when called upon. 
 -A knight would be given a fiefdom by a vassal and act a part of a standing army for the vassal. 
 -A serf would be given a fiefdom by a knight and protect the lands outside of the castle walls. 
 -A vassal depended on the agricultural production of serfs to feed the whole system. 
 -A king would hire a vassal to provide an army and political advice during times of war.