WHICH STATEMENT BEST DESCRIBES THE SYSTEM DESCRIBED IN THIS SOURCE? He who swears fealty (loyalty) to his lord ought always to have these six things in memeory , what is harmless, safe honorable, useful, easy, practicable (possible)... The lord also ought to act toward his faithful vassal reciprocally (mutually) in all these things. And if he does not do this he will be justly considered guilty of bad faith, just as the former, if he should be detected in the avoidance of or the doing of or the consenting to them, would be perfidious(disloyal)
-Fulbert of Chartres:On Feudal obligations, 1020

a Feudalism is dependent on the vassal and lord upholding obligations of service to one another.
b Under a feudal system, the lord is able to retain all profits made by the work of vassals on the king’s land.
c Feudalism requires the vassal and the lord to act independently of one another in service to the king.
d Under a feudal system, the king is obligated to the lord to provide assistance in exchange for titles of nobility.