Answer : the correct answer is A) decline in world wide trade
Explanation :
After the end of the profitable slave trade in Africa, due to abolishing of slavery, Europeans explored for new guaranteed markets, and heavily profitable investments. In addition, European countries were under industrialization, the demand for raw materials heavily increased. Europeans undertook the process of imperialism in Africa in the late 19th century by exercising political, economic, and military power on their African colonies
This countries focused on building their empires with new technological advances and developments, making their territory bigger through conquest, and exploiting the resources of the subjugated countries
This new wave of imperialism reflected ongoing rivalries among the great powers, the economic desire for new resources and markets, and a "civilizing mission" ethos.
