The correct option is A Administering the trust territories
The Trusteeship Council is made of five permanent members of Security Council, those are China, France, Russian, United Kingdom and United States. Trusteeship Council is authorized to examine and discuss reports from the Administering Authority on the social, economic, political, educational advancement of the people of Trust Territories. The Trusteeship Council suspended its operation on 1 November 1994, dropped its obligation to meet annually and agreed to meet as occasion required.