The correct options are
A A united action plan to prosecute and defeat the enemy at war.
B To act together in unison regarding the unconditional surrender and disarmament of the enemy.
C To institute an international organisation based on the principles of sovereignty and equality of all peace-loving states.
After the Washington Conference, the representatives from the US, UK, USSR, and China made a joint declaration in 1943 in Moscow to continue hostilities against the Axis powers. This conference recognised the necessity of ensuring a rapid and orderly transition from war to peace. It also declared to lay down a framework for maintaining international peace and security with the least diversion of the world's resources for armaments. It also declared that after the termination of resources, the allied powers would not employ their military forces within the territories of enemy states.