The correct answer is agriculture. It was made possible for people to live on a single piece of land and not be nomadic anymore in search of food. Agriculture enabled them to settle around river valleys like Nile or Tigris and Euphrates. This is the era when civilizations started rising worldwide.
The answer tot he question is D
Answer:The opportunity cost in this scenario is the three lost opportunities Harry experiences by deciding to go to his parents house. The term opportunity cost refers to the loss of potential gain from other alternatives when one alternative is chosen. The potential gain Harry may have lost by choosing to go to his parents for dinner instead could be relaxation while fishing, His house painting being finished, and time spent with his friends at the birthday party. These all can be considers lost opportunity due to choosing an alternate opportunity, that being dinner at his parents.
Explanation:
Western Europe valued imperialism. For example, Great Britain was known for the numerous colonies that they had. There is a quote that states, "The Sun never sets on Great Britain" meaning that they had so many colonies around the world that the Sun never set on them. In addition, countries such as France and Spain also imperialized especially in the New Worl. However, Eastern Europe was always less developed than Western Europe so they didn't have the power to colonize countries. I hope this help! Good luck!