Hegel’s dialectical materialism was based on

Hegel’s dialectical materialism; later adapted by Marx; combines thought processes and material conditions to explain historical change. His thesis-antithesis-synthesis model shows how ideas evolve through conflict; influenced by economic realities. This dual approach underpins Marxist philosophy; making C the correct answer. Options A and B alone are incomplete; and D is incorrect as the concept is well-defined. This question tests philosophical knowledge; common in exams assessing intellectual history and theoretical frameworks.