Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| Date | Location | Opponent | Score | Competition |
| --- | --- | --- | --- | --- |
| 29 August 2010 | Mahajanga | Comoros | 1–0 | Friendly |
| 5 September 2010 | Calabar | Nigeria | 0–2 | 2012 ACN qualification |
| 10 October 2010 | Antananarivo | Ethiopia | 0–1 | 2012 ACN qualification |
| 25 March 2011 | Antananarivo | Guinea | 1–1 | 2012 ACN qualification |
| 3 June 2011 | Conakry | Guinea | 1–4 | 2012 ACN qualification |
| 17 July 2011 | Tehran | Iran | 0–1 | Friendly |
| 2 September 2011 | Antananarivo | Nigeria | 0-2 | 2012 ACN qualification |
| 8 October 2011 | Addis Ababa | Ethiopia | 2-4 | 2012 ACN qualification |
Question:
Which competition was held at Addis Ababa?
Answer:
2012 ACN qualification