Answer:
A. A lord's estate.
Step-by-step explanation:
During the feudal system, all land that exist in a certain country were owned by several lords. These lords 'allowed' the commoners to take care of the lands in return of small percentage that they received from the harvest.
A manor represent a unit of land that is owned by one lord. It usually consist of lands, tenants (commoners), private military, and manorial court as a place to settle disputes.