Which was not used to justify European imperialism in the late nineteenth century?

the philosophy of karl marx

a new wave of nationalism

a belief in european superiority

social darwinism

The philosophy of Karl Marx was not used to justify European imperialism in the late nineteenth century. The correct option among all the options that are given in the question is the first option. Karl Marx was a revolutionary socialist and was born on 5th of may in the year 1818 and died on 14th of March in the year 1883.