The term national interest is typically understood as an interest of the state, yet what determines this interest varies with each theory. realists argue that this concept is defined while liberals define it as

Realists: Selfish way that the countries define their power

Liberals: Decisions taking on everyone´s benefit.

Explanation: For one of the main theorists of realism, Hans Morgenthau, points to the national interest as the compass that should guide the leaders and source of legitimacy of the foreign policy of the state. For this author, the national interest of a nation can only defined on terms of survival and power.

Since liberalism, the national interests of the states become in a large part of the situations, common and shared by various states. Therefore, the national interests should not be promoted without talking into account the effects that will be caused to others.

what are the choices? the multiple choices?

i will answer in the comments after the choices have been said.

answer; no longer than a reasonable period of time;