The correct options are
A It keeps a record of all the organs of the UN.
B It implements the decisions taken by the other organs of the UN.
C It examines the work done by the UN organs and submits annual reports to the General Assembly.
The Secretary-General implements the decisions taken by the other UN organs. It also examines the work done by them and submits annual reports to the General Assembly. It keeps a record of all the organs of the UN. The temporary members of the Security Council and the judges of the International Court of Justice are elected by the UN General Assembly.