The passage introduces all the following about the Security Council EXCEPT ______.

A．every permanent member has the veto right of great powers
B．all the permanent members won in the World War
C．the other members of the Security Council are in the charge of the permanent members
D．of some other reasons not mentioned in this passage

A．The Security Council convenes annually.
B．All UN members should observe the decisions adopted by the Security Council.
C．Although one member seriously complains about another member's action, the Security Council will not convene at its request.
D．The five permanent members of the Security Council hold less than one half armed forces in the world.