Answer / Explanation
To properly understand this question, let me explain what we are expected to do. Some statement are made about a literature and the request in this particular question is to define the statements preferably in few words.
Now, going back to the narrative of the question, we will pick the statement one after the other and define them with an answer.
1. able-bodied men who are hired by the vassal for the protection of the lord. King John
Answer = Knights
2. vassals would be ready to assist monetarily such as in giving ransom money in time of need standing army
Answer = feudal-aid
3. ruled England in the 1200's knights
Answer = King John
4. a group of soldiers ready to do battle feudal aid
Answer = standing army
5. a ceremony where men become vassals in a lord's manor. homage
Answer = homage