in the feudal system, a land grant was called a\no feud.\no fief.\no vassal.\no manor.

Brief Explanations:

In the feudal system, a fief was a land - grant given by a lord to a vassal in return for service and loyalty. A feud is a prolonged quarrel, a vassal is a person in a subordinate position, and a manor is an estate consisting of the lord's lands and his mansion.

Answer:

B. fief