The United Nations Monetary and Financial Conference, where agreements were signed to establish International Bank for Reconstruction and Development (IBRD), General Agreement on Tariffs and Trade (GATT) and International Monetary Fund (IMF), is more commonly known as the Bretton Woods Conference, making option 2 the correct answer.

Option 1, the Bandung Conference, was a meeting of Asian and African states, most of which were newly independent, held in Bandung, Indonesia in 1955.

Option 3, the Versailles Conference, alludes to the Paris Peace Conference held in 1919, resulting in the Treaty of Versailles which ended World War I.

Option 4, the Yalta Conference, was a meeting towards the end of World War II in February 1945, between the then `big three` powers - the United States, the United Kingdom, and the Soviet Union.

Thus, each option refers to a different historic conference, with the Bretton Woods Conference being the most relevant to the creation of IBRD, GATT, and IMF.