Under Feudalism of the Early Middle Ages

Under feudalism of the Early Middle Ages

A) the major obligation of a vassal to his lord was to provide military service.
B) a vassal was not required to provide legal assistance at his lord's court.
C) a lord has no formal responsibilities toward his vassals.
D) there was no outlet for the breaking of the bond between lord and vassal.
E) serfdom came to an end.