The correct option is D All the above
Military imperialism, Political imperialism, Economic imperialism are the major forms of imperialism. Imperialism is a policy or ideology of extending a country's rule over foreign nations, often by military force or by gaining political and economic control of other areas. Ruling a country directly by the military forces is called as Military imperialism. Ruling a country indirectly by keeping a puppet government is called as Political imperialism. A country controlling the economic power of another country to exploit its natural resources in called Economic imperialism.