Consider the following statements about the African Union (AU):

1) The African Union (AU) consists of all the 55 countries on the African continent.

2) The most important decisions of the AU are made by the Assembly of the African Union, a  semi-annual meeting of the heads of member states.

3) The AU’s secretariat, the African Union Commission, is based in Addis Ababa.

Which of the statements given above is/are correct?