Answer:
Lord or Ruler
Explanation:
Lord or Ruler is the group of people that started the process of giving land to other groups in the feudal system.
The other groups in which the Lord or Ruler gives land are known as Vassal. They give their military services or loyalty in return for the land given to them by the Lord or Ruler.
The geography of where the city was located helped them because it was an aquatic environment that provided protection because it was surrounded by a huge lake.
Answer: Online retailing
Explanation: Online retailing or what is called electronic tailing (e-tailing) is nothing but online sales where someone can sell services and goods, intellectual property, etc. It is a matter of retailing like when you go to a store and buy something for your needs, only this is done electronically here, i.e. through online shopping. Online retailing can take place between a seller and a buyer, or also between two sellers or two businesses, known as B2B.