Answer:
The correct answer is A. Land ownership was used to distinguish high ranking members of society from low ranking members under the feudal system.
Step-by-step explanation:
Feudalism is a hierarchical social system built around grants, estates and privileges referred to land, sometimes hereditary, which the monarchy gave to a ruling class as a reward for services.
Feudal rights were held only by the nobility in feudal society. This means that they had a monopoly on land, mills, wine presses, ovens, hunting and fishing as well as the highest offices in society, while vassals had to serve and be loyal to them in order to get the right to settle and use the land.