Another branch of the UN is the Security Council. The main purpose of this department is to maintain international peach and keep the world secure. In this branch, there are only fifteen members. Five of these members are permanent. the permanent members are China, France, Russia, the United Kingdom (Britain), and the United States. The other ten members are elected by the General Assembly for two-year terms.

According to the passage, how many members of the Security Council are elected on a rotating basis?

답은 5라고 나왔는데, 10아닌가요?