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