State responsibility under international law requires the following to be fulfilled : i. There exists an international legal obligation in force as between two particular States ii. There has occurred an act or omission which violates that obligation and which is imputable to the State responsible iii. Loss or damage has resulted from the unlawful act or omission Choose the correct option

The correct option is (A): All three.

State responsibility under international law requires the following to be fulfilled : i. There exists an international legal obligation in force as between two particular States

I. Uti Possidetis	1. Principle in customary international law providing that where there has been a fundamental change of circumstances since an agreement was concluded, a party to that agreement may withdraw from or terminate it.
II. Pacta Sunt Servanda	2. Two or more states equally exercise sovereignty with respect to a territory and its inhabitants.
III. Condominium	3. Doctrine that territory remains with the possessor state at the end of war or occupation unless otherwise determined by a treaty or an agreement.
IV. Rebus Sic Stantibus	4. Proposition that treaties are binding upon the parties to them and must be performed in good faith.