Take context from the input text and decide on the accurate relationship between 'Tunisair' and 'Tunis' from the options provided.
Options: headquarters location, legal form, member of, location of formation

Tunis — Tunisair will take delivery on August 24 of its new Airbus A330-200 thus bringing the number of its fleet to 30 aircraft, the national carrier announced in a recent press release.
location of formation