Non-permanent members of UNO

The correct answer is 10. The United Nations Security Council (UNSC) has a total of 15 members, out of which 5 are permanent members (China, France, Russia, UK, US) with veto power, and the remaining 10 are non‑permanent members elected by the General Assembly for two‑year terms. These non‑permanent members are selected based on geographical representation, with five from Africa and Asia, two from Latin America and the Caribbean, two from Western Europe and Other States, and one from Eastern Europe. The non‑permanent membership was expanded from 6 to 10 in 1965 through an amendment to the UN Charter. The option 5 refers to the permanent members, 15 is the total membership, and 20 is an incorrect number. Therefore, 10 is the correct number of non‑permanent members of the UN Security Council.