Social contract theory depends on the assumption that the individuals might voluntarily bind themselves to the certain principles.

Some of the common assumptions of liberal and realist approaches to regimes can be listed as:

States operate in an anarchic international system.
States are rational and unitary actors.
States are the units responsible for establishing regimes.
Regimes are established on the basis of cooperation in the international system.

Thus, the correct answer is E. 

Wight’s triple conceptualization of international thought in terms of three Rs, namely Realism (associated with Machiavelli and Hobbes), Rationalism (associated with Grotius) and Revolutionism (associated with Kant), actually corresponded with the international system, international society and world society.

Jus ad bellum refers to the conditions under which States may resort to war or to the use of armed force in general. The prohibition against the use of force amongst States and the exceptions to it (self-defence and UN authorization for the use of force), set out in the United Nations Charter of 1945, are the core ingredients of jus ad bellum.

Liberal economists are in favor of MNCs. They believe that through stronger bonds between states, MNCs can also help world peace. The correct answer is A.

Its lack of a development-centered approach

Economic structuralism is concerned with the international division of labor created by the capitalist system. It sees that the division of labor is unfair, creating categories of rich and poor people, as well as rich and poor nations, at the macro level. The correct answer is E.

Natural law moral theory, the moral standards that govern human behavior are, in some sense, objectively derived from the nature of human beings and the nature of the world. 

The founding members of the British Committee were Herbert Butterfield (historian), Martin Wight (IR Scholar), Desmond Williams (historian), Michael Howard (military historian), Geoffrey Hudson (historian), Donald McKinnon (philosopher), William Armstrong (economist from the Treasury Department), Adam Watson (diplomat), and Hedley Bull (IR scholar).

The English School has its main roots in the study of history, political theory and international law, whereas constructivism grew out of debates about epistemology and method. The distinctions of the English School from other schools and its merits are ontological and epistemological pluralism, its historical approach repudiating both determinism and presentism, and the significance given to values and cultural civilizational identities.

The first and basic argument of the School is ontological and epistemological pluralism. The English School argues that the reality of IR, i.e. the practice of international relations, cannot be confined, or reduced, to a single element; it is always multi-dimensional. In other words, the reality of international relations is composed of ontologically plural phenomena. This idea of ontological pluralism is expressed in the description of international reality as comprising the elements of international system, international society and world society.

Immanuel Kant

American President George W. Bush, in 2001, identified the attack of Al-Qaeda as an attack to the democracy and human rights, and he also introduced the operation against Afghanistan with the concepts of “perpetual peace” (or infinite peace) and “infinite justice/enduring freedom”.

Liberal institutionalists' approach to regimes:
1- Regimes enable states to collaborate.
2- Regimes promote the common good.
3- Regimes flourish best when promoted and maintained by a benign hegemon.
4- Regimes promote globalization and a liberal world order.

Thus, the correct answer is B. 

LIBERAL AND REALIST APPROACHES TO REGIMES

Common assumptions
1 States operate in an anarchic international system.
2 States are rational and unitary actors.
3 States are the units responsible for establishing regimes.
4 Regimes are established on the basis of cooperation in the international system.
5 Regimes promote international order.

Therefore, the correct option is B.

The answer is E

Within the structuralist approach, there are actually two sub-approaches: the Marxist approach, which rejects capitalism completely, and the dependency approach, which aims to reform it. The correct answer is "C".

Political economy is, in a generic sense, a discipline analyzing the relationship between economy and politics, or vice versa. The basic assumption on which the discipline is based is that neither politics, nor economy can be fully understood in the absence of the other. That is to say, economy affects politics, as politics affects economy. Even the two can be said to be intertwined most of the time.

Barry Buzan made a call for the reconvening of the English School in 1999 and took the issue with the naming of the School. By that time, besides the “English School”, the School was variously named by different scholars such as “British School, British Institutionalists, International Society Approach, the Classical School, British Idealists and Rationalism”. As a result of Buzan’s call for reconvening, there emerged some agreement upon the name “English School” and since then it has been commonplace name for the School. 

Approach                        Representative

Economic Liberalism                   I- Adam Smith

Economic Nationalism                II- Alexander Hamilton

Economic Structuralism             III- Karl Marx