Who was NOT a part of the Neo-realist approach to International Relations?

Correct option is A

Correct Answer: a) Hans J. Morgenthau.

Information Booster :
Neo-realism (Structural Realism) in International Relations is distinct from Classical Realism in its focus on the structure of the international system, especially anarchy and distribution of capabilities, rather than human nature.

Kenneth Waltz is the founder of Neo-realism, articulated in Theory of International Politics (1979).

John Mearsheimer is associated with Offensive Realism, a major strand within Neo-realism.

Stephen Walt developed Balance of Threat Theory, also located within the Neo-realist framework.

Why Hans J. Morgenthau is NOT part of Neo-realism:

Morgenthau is the leading exponent of Classical Realism.
His theory is grounded in human nature, power politics, and the concept of animus dominandi, rather than systemic structure.