The correct answer is (d). None of the above.
Prof. Hans Kelsen was an Austrian jurist who is considered one of the most important legal theorists of the 20th century. He is best known for his work on the concept of sovereignty and the rule of law. Prof. Quincy Wright was an American political scientist who is considered one of the founders of the field of international relations. He is best known for his work on the causes of war and the prevention of conflict. Oppenheim was a German jurist who is considered one of the founders of the field of international law. He is best known for his work on the law of treaties and the law of war.
The statement “Inclusion of any matter in the agenda of General Assembly, discussion on it, its study or the passing of a General Resolution would not amount to intervention” is not attributed to any of these scholars. It is a statement of the United Nations Charter, which states that “Nothing contained in the present Charter shall authorize the United Nations to intervene in matters which are essentially within the domestic jurisdiction of any state or shall require the Members to submit such matters to settlement under the present Charter; but this principle shall not prejudice the application of enforcement measures under Chapter VII.”