The Atlantic Ocean. Its the ocean that connects North and South America to Europe. Most early explorers came from Europe and "discovered" the Americas. The slave trade as well as spice trade used the Atlantic ocean because it's the most direct way from most of Europe.
One of the last two definitely prob the 4th one
All of the statements are examples of collective ownership in the socialist countries.
Collective ownership, at it's core, represents ownership of something, most commonly land and industrial assets, from all members of a group for the mutual benefit of all. This was implemented in most of the socialistic countries, but still the main and dominant owner was usually the government itself, while the people had shares in most of the industries and land.
Answer: A
Explanation: Byzantine Empire and the medieval society in Europe was the existence of a dominant religion which was Christianity. At the time of the rule of the Romans, Christianity was legalized by Emperor Constantine.