Concept:Lewis Samuel Feuer classified imperialism into two types based on motive: progressive and regressive.Explanation:Progressive imperialism was said to carry a civilising mission or welfare motive.Regressive imperialism, however, was driven purely by conquest and exploitation.The phrase “pure conquest and unequivocal exploitation” refers directly to regressive imperialism.Therefore, it does not mean colonialism or neo-colonialism as general terms.Answer:C. Regressive Imperialism