Answer:
Imperialism is a policy of extending a country's power and influence through diplomacy or military force. Or in simpler terms, it can be defined as a rule by an emperor.
Explanation:
Columbus was originally going to sail along the West African coast and around the Cape of Good Hope. But than Columbus had the idea of instead to sail west across the Atlantic instead of around the gigantic African continent.
I think its A. but not so sure
Answer:
I would say what was most important would be the adoption of agriculture. Humans no longer had to move around and spend their days solely focusing on finding food. Being able to settle down and make one's own food allowed humans to have free time, and create hierarchies and languages and art, creating societies and civilization.