Answer:
These are the seemingly correct answers.
1. knighthood: able-bodied men who are hired by the vassal for the protection of the lord
2. standing army: group of soldiers ready to do battle
3. Subinfeudation: breaking down an already-smaller portion of land in exchange for services and protection
4. summons : a call to appear in court
5. vassal: a man who would give protection to the lord in exchange for land
Step-by-step explanation: