Concept:The Atlantic Charter was a joint declaration that shaped the post-war international order and led to the creation of the United Nations.
Explanation:In August 1941, President Franklin D. Roosevelt of the United States and Prime Minister Winston Churchill of Britain met to discuss the future of the world after World War II.
They issued the Atlantic Charter, which stated shared goals such as self-determination, economic cooperation, disarmament, and collective security.
These principles became the foundation for the Declaration of the United Nations in 1942.
Later, in 1945, the United Nations was formally established to promote international peace and cooperation.
Therefore, the Atlantic Charter is historically recognised as a key step that gave birth to the United Nations.
It did not create the Commonwealth of Nations, the Allied powers, or NATO.
Answer:C. United Nations