The Security Council is the permanent body of the General Assembly, responsible to the Assembly and implementing its resolutions. According to international practice, the board of directors is elected by all members of the exchange through the shareholders' meeting, and its functions and powers include convening the shareholders' meeting, reporting to the shareholders' meeting, supervising the implementation of the resolutions of the shareholders' meeting and the board of directors, and deciding to set up special committees, etc. Therefore, options A, B and C are correct. Major resolutions such as merger, division, dissolution and liquidation of the futures exchange shall be decided by the general meeting of members.