I think it is a because of the time
Many knights were professional warriors who served in the lord's army. ... In return, the lord provided the knight with lodging, food, armor, weapons, horses and money. Peasants, or serfs, farmed the land and provided the vassal or lord with wealth in the form of food and products.
Answer:
Hey I think the answer is The buffer colony
Explanation:
Hope it helps
A new concept that became popular with department stores was using credit cards, and buying on credit: it allowed the users t posses good they cannot afford and on the other hand gave more revenue to the shops and they could charge interest.