Its option B
Explanation:
Because European countries were more developed than Asia and Africa
In the 15th century, Europe sought to expand trade routes to find new sources of wealth and bring Christianity to the East and any newly found lands. This European Age of Discovery saw the rise of colonial empires on a global scale, building a commercial network that connected Europe, Asia, Africa, and the New World.
I think the answer is colonization. Many European countries like Great Britain, France, Spain, and Portugal had started exploring the New World. These European Nations wanted to expand their territory and to spread religion and civilized barbarians in their colony.
The answer is Mercantilism