Concept:Karl Marx viewed socialism as a historical response to the injustices produced by capitalism.
Explanation:Under capitalism, Marx observed severe inequality and exploitation of workers by owners.
He argued that the capitalist system creates class conflict and social evils.
Socialism, in his theory, emerged as a corrective system to remove these evils.
Therefore, the evils that led to socialism are those of capitalism, not monarchy, communalism, or feudalism.
Answer:D. capitalism