The answer is A.
The feudal system would follow from the king down to the serfs.
What is confusing is the lords vs. knights. Lords will rule over knights and knights will rule over serfs.
Meaning the system kind of looks something like this:
King
Lord — Lord — Lord
Knight — Knight — Knight — Knight — Knight — Knight
And serfs
Hope this helps, have a great day!
Didn't you already ask it? lol. France XD
Https://www.army.mil/article/49291/pershings_decision_how_the_united_states_fought_its_first_modern_coalition_war
this might help you :)
The Holocaust was the primary reason the United nations called for a convention