Answer:
C. Opening new markets by forcing weaker countries to buy their goods
Step-by-step explanation:
If a country or organisation tries to hold economic influence and power over other it is called economic imperialism. It can be exerted in from of a colony where a foreign country control the protectorate and controls the local government.
Colonisation was also a form of imperialism. It has been practised throughout history but the period form early 18th to mid 20th century is known as Age of Imperialism.
Imperialism enriched the imperialist country as hey gain the mining products and agricultural resources and trade markets. Conquered people were forced into low wage work and slavery.
During the Age of Imperialism the industrialised nations competed to control the non industrialised regions of the world as the human, natural resources were cheaply available.